What Is Data Center and Cloud Service Registration Nepal?
Data Center and Cloud Service Registration Nepal refers to the formal process by which a business entity operating data center infrastructure or providing cloud computing services is incorporated under Nepalese law and listed with the Department of Information Technology under the Data Center and Cloud Services (Operation and Management) Directive, 2081 (2025). This directive, issued on January 28, 2025, under Section 79 of the Electronic Transactions Act, 2063, mandates compulsory registration for all data center and cloud service providers operating in Nepal. The directive establishes a tier classification system for data centers, prescribes operational standards, mandates security compliance, and requires government agencies to use only registered providers. For IT entrepreneurs, infrastructure investors, and foreign technology companies seeking to establish data center or cloud operations in Nepal, understanding the legal architecture, infrastructure requirements, and compliance obligations is essential. This guide has been prepared to explain every stage of the procedure in a manner that is both legally accurate and practically actionable. CorporateNp is recognized as a trusted service provider for data center and cloud service registration and IT compliance in Nepal.
Legal Framework Governing Data Center and Cloud Service Registration Nepal
Multiple statutes and regulations are applied to govern the establishment and operation of data centers and cloud services in Nepal. The primary legislation is the Electronic Transactions Act, 2063 (2008), which provides the legal basis for digital services, electronic signatures, and data protection. The Data Center and Cloud Services (Operation and Management) Directive, 2081 (2025) establishes the mandatory registration requirement, tier classification system, and operational standards. The Companies Act, 2063 (2006) governs the incorporation of the service provider as a corporate entity. The Information Technology Policy, 2072 (2015) establishes the strategic framework for IT sector development. The National Cyber Security Policy, 2078 (2021) prescribes security standards for critical digital infrastructure. The Foreign Investment and Technology Transfer Act, 2075 (2019) permits 100% foreign ownership in IT services with no minimum capital requirement. The Income Tax Act, 2058 (2002) imposes corporate tax at 25%, though IT exports may qualify for tax rebates. The Individual Privacy Act, 2075 (2018) governs personal data protection. Together, these laws create a comprehensive regulatory system through which Data Center and Cloud Service Registration Nepal is administered.
Legal Framework Summary Table
Legislation
Relevance to Data Center and Cloud Registration
Electronic Transactions Act, 2063
Legal basis for digital services and data protection
Data Center and Cloud Services Directive, 2081
Mandatory DoIT listing, tier classification, operational standards
Companies Act, 2063
Company incorporation and corporate governance
Information Technology Policy, 2072
Strategic IT sector development framework
National Cyber Security Policy, 2078
Security standards for critical infrastructure
FITTA, 2075
Foreign investment with zero minimum capital for IT
Income Tax Act, 2058
Corporate tax and export rebate provisions
Individual Privacy Act, 2075
Personal data protection requirements
Types of Data Center and Cloud Services Recognized in Nepal
Four primary categories of data center and cloud service operations are recognized under the Directive 2081. Each category is subject to distinct registration and compliance requirements.
Data Center Operator
Owns and operates physical data center facilities
Provides colocation, server hosting, and infrastructure services
Must achieve tier classification (I, II, III, or IV)
Highest infrastructure and capital requirements
Mandatory DoIT listing before commencing operations
Cloud Service Provider
Offers Infrastructure as a Service (IaaS), Platform as a Service (PaaS), or Software as a Service (SaaS)
May operate own data centers or use third-party facilities
Must comply with information security and IT service management standards
Mandatory DoIT listing for all cloud service operations
Managed Service Provider
Provides managed hosting, disaster recovery, and IT outsourcing services
Often combines data center operations with cloud services
Must obtain appropriate listings for each service category
Requires both infrastructure and service management compliance
Hybrid Service Provider
Combines data center operations with cloud service delivery
Offers both physical infrastructure and virtualized services
Must comply with all requirements applicable to both categories
Most complex compliance structure
Service Type Comparison Table
Service Type
Primary Offering
DoIT Listing Required
Infrastructure Level
Capital Requirement
Data Center Operator
Colocation, physical hosting
Mandatory
Very High
NPR 10M-100M+
Cloud Service Provider
IaaS, PaaS, SaaS
Mandatory
High
NPR 5M-50M+
Managed Service Provider
Managed hosting, DR
Mandatory
High
NPR 5M-30M+
Hybrid Service Provider
Combined physical and cloud
Mandatory
Very High
NPR 15M-100M+
Data Center Tier Classification System in Nepal
The Directive 2081 establishes a four-tier classification system for data centers based on infrastructure reliability, redundancy, and service availability.
Tier I: Basic Capacity
Uptime: 99.671%
Maximum downtime per year: 28.8 hours
Power backup: 12 hours minimum
Redundancy: None (N)
Suitable for: Startups, small businesses, non-critical applications
Infrastructure requirements: Basic power and cooling, single distribution path
Tier II: Redundant Capacity Components
Uptime: 99.749%
Maximum downtime per year: 22 hours
Power backup: 12-24 hours
Redundancy: Partial (N+1 for critical components)
Suitable for: Small to medium businesses, moderately critical applications
Infrastructure requirements: Redundant power and cooling components, single distribution path
Tier III: Concurrently Maintainable
Uptime: 99.982%
Maximum downtime per year: 1.6 hours
Power backup: 24-48 hours
Redundancy: N+1 (one active backup for every component)
Suitable for: Banks, government agencies, large enterprises, critical applications
Infrastructure requirements: Multiple distribution paths, concurrent maintenance capability, dual power feeds
Data centers storing government data must achieve Tier III or higher classification
Government agencies are mandated to use only DoIT-listed data center and cloud service providers
Security agencies must use services operated by the Integrated Data Management Center
Eligibility Criteria for Data Center and Cloud Service Registration Nepal
Specific eligibility conditions must be satisfied before a data center or cloud service provider can be registered and listed in Nepal.
Company Structure Requirements
The company must be incorporated as a private limited company, public limited company, or foreign company branch under the Companies Act
The memorandum of association must expressly include data center operations, cloud services, or related IT infrastructure services as primary objectives
Minimum authorized capital for domestic private limited companies is NPR 100,000 with at least 10% paid-up
For foreign investors in IT services, no minimum capital requirement applies under FITTA
Technical Personnel Requirements
At least one technical director or manager with demonstrated expertise in data center operations or cloud architecture
Network security specialists are mandatory for Tier III and IV facilities
Compliance officer must be appointed or services obtained from authorized institutions
IT service management certified personnel are recommended
Infrastructure Requirements
Registered office and operational facility in Nepal
Physical data center facility meeting tier classification standards or cloud service delivery infrastructure
Reliable power supply with backup systems meeting tier requirements
Fire safety systems certified by relevant authorities
Physical security measures including access control and surveillance
Environmental controls including cooling and humidity management
Network connectivity with redundant internet access
Security and Compliance Requirements
Information security management system implemented
Business continuity and disaster recovery plans documented
Data protection and privacy policies enforced
Annual security audit capability
Compliance with National Cyber Security Policy standards
Step-by-Step Data Center and Cloud Service Registration Nepal Process
The procedure for Data Center and Cloud Service Registration Nepal involves sequential stages across multiple government agencies. The process is described below in the order in which it is typically completed.
Stage 1: Company Incorporation
Step 1: Reserve Company Name
An online name reservation application is submitted through the OCR portal
The proposed name should reflect the data center or cloud service nature of the entity
Names typically include terms such as Data Center, Cloud, Host, Server, or Digital Infrastructure
Name reservation is generally approved within 1 to 3 working days
Step 2: Draft MOA and AOA
The Memorandum of Association specifies data center operations, cloud services, and related IT infrastructure objectives
The Articles of Association provide for:
Board composition and director appointment
Share transfer restrictions
Compliance officer appointment
Data protection and privacy provisions
Business continuity and disaster recovery procedures
Asset disposal upon dissolution
Step 3: Submit Incorporation Documents to OCR
Required documents include:
Name reservation approval
MOA and AOA signed by all promoters
Notarized citizenship certificates of promoters
Passport-sized photographs of promoters
Office rent agreement or ownership documents
Ward office recommendation letter
OCR verification and approval typically takes 3 to 7 working days
Step 4: Obtain PAN and Tax Registration
Permanent Account Number is registered at the Inland Revenue Department
Tax clearance certificate is obtained
VAT registration is completed if annual taxable turnover exceeds NPR 2 million for services
Step 5: Ward Office Business Registration
The company is registered at the local Ward Office where the registered office is located
A trade license or business operation certificate is obtained
Fees vary by municipality, typically ranging from NPR 5,000 to NPR 15,000 annually
Stage 2: Department of Information Technology Listing
Step 6: Determine Listing Category
Separate applications are required for data center and cloud service operations
Companies offering both services must apply for both listings
The appropriate tier classification is determined based on infrastructure capabilities
Step 7: Prepare DoIT Application for Data Center Listing
Required documents include:
Certificate of incorporation of company
Security and privacy policy of the organization
Business continuity plan details
IP pool details available in the company's name
Fire safety compliance certificate
Building completion certificate
Map location of the data center
Data center tier classification details
Technical manpower details
Physical security procedures
High-level electricity design
Information security standard certificates for both primary and disaster recovery sites
Step 8: Prepare DoIT Application for Cloud Service Listing
Required documents include:
Certificate of incorporation
Security and privacy policy
Business continuity plan
IP pool details
Technical manpower details
Data center location map where cloud service is operated
Agreement with the data center if using third-party facilities
ISP/NSP affiliation details
Information security standard certificates
Information technology service management standard certificates
Step 9: Submit Application and Undergo Inspection
The complete application is submitted to the Department of Information Technology
DoIT officials conduct document verification
Physical inspection of data center facilities is conducted for data center listings
Technical evaluation of cloud service infrastructure is performed
Additional documents may be requested during the review process
Step 10: Obtain DoIT Listing Certificate
Upon satisfactory verification and inspection, DoIT issues the listing certificate
The certificate is typically issued within one month of complete application submission
Listed providers must update their details annually by the end of Poush (mid-January)
Stage 3: Additional Compliance
Step 11: Implement Operational Compliance Systems
Equal access opportunities are provided to all customers
Necessary security standards are adopted for data storage
Service continuity is ensured through redundant systems
Unauthorized access monitoring and reporting systems are implemented
Compliance officer is appointed or services are obtained from authorized institutions
Annual security audit arrangements are made
Customer data protection measures are implemented through bilateral agreements
Infrastructure transfer assistance procedures are established for customer termination
Step 12: Obtain ISP License if Providing Connectivity
If the data center or cloud provider also offers internet connectivity, an ISP license must be obtained from the Nepal Telecommunications Authority
Three categories of ISP licenses are available: National, Regional, and Local
Documents Required for Data Center and Cloud Service Registration Nepal
Proper documentation is essential for the successful registration and listing of data center and cloud service providers. The following documents are required at various stages.
Company Incorporation Documents
Certificate of incorporation from OCR
Memorandum and Articles of Association
Board resolution authorizing business operations
PAN registration certificate
Tax clearance certificate
Ward office business registration certificate
DoIT Data Center Listing Documents
Certificate of incorporation of company
Security and privacy policy of the organization
Business continuity plan details
IP pool details available in the company's name
Fire safety compliance certificate
Building completion certificate
Map location of the data center
Data center tier classification details
Technical manpower details
Physical security procedures
High-level electricity design
Information security standard certificates for primary site
Information security standard certificates for disaster recovery site
DoIT Cloud Service Listing Documents
Certificate of incorporation
Security and privacy policy
Business continuity plan
IP pool details
Technical manpower details
Data center location map where cloud service is operated
Agreement with the data center if using third-party facilities
ISP/NSP affiliation details
Information security standard certificates
Information technology service management standard certificates
Security policy, BCP, IP pool, fire safety, tier details, IS certificates for DC and DR
Department of Information Technology
DoIT Cloud Service
Security policy, BCP, IP pool, DC agreement, ITSM certificates, ISP/NSP affiliation
Department of Information Technology
ISP License
Business plan, technical proposal, financial proof, security plan
Nepal Telecommunications Authority
Operational Compliance Obligations Under Directive 2081
The Data Center and Cloud Services Directive, 2081 imposes specific operational compliance obligations on all listed providers.
Equal Access and Non-Discrimination
Equal access opportunities must be provided to all customers
No preferential treatment or discriminatory pricing based on customer size or sector
Transparent service level agreements must be offered
Security Standards
Necessary security standards must be adopted for data storage and processing
Information security management systems must be implemented and certified
Regular security audits must be conducted by authorized auditors
Service Continuity
Service continuity must be ensured through redundant infrastructure
Business continuity plans must be documented and tested regularly
Disaster recovery capabilities must match the declared tier classification
Unauthorized Access Reporting
Unauthorized access incidents must be reported immediately to regulatory authorities
Incident response procedures must be documented and operational
Customer notification protocols must be established for security breaches
Compliance Officer Requirement
A compliance officer must be appointed or services obtained from authorized institutions
The compliance officer is responsible for regulatory liaison and compliance monitoring
Annual compliance reports must be submitted through the compliance officer
Annual Security Audits
Annual security audits must be conducted by certified auditors
Audit reports must be submitted to DoIT as part of annual updates
Remediation of identified vulnerabilities must be documented
Customer Data Protection
Customer data must be protected through bilateral agreements
Data localization requirements must be observed for government and financial sector data
Cross-border data transfer restrictions must be complied with
Infrastructure Transfer Assistance
Upon termination of services, infrastructure transfer assistance must be provided to customers
Data portability mechanisms must be established
No unreasonable barriers to customer migration may be imposed
Compliance Obligations Summary Table
Obligation
Requirement
Frequency
Equal Access
Non-discriminatory service provision
Continuous
Security Standards
ISMS implementation and certification
Annual audit
Service Continuity
BCP testing and DR validation
Annual
Incident Reporting
Unauthorized access reporting
Immediate
Compliance Officer
Appointed or contracted
Continuous
Security Audits
Certified auditor assessment
Annual
Data Protection
Bilateral agreements and localization
Continuous
Transfer Assistance
Customer migration support
Upon termination
Delisting Procedures and Consequences
The Directive 2081 establishes clear procedures for delisting non-compliant providers.
Grounds for Delisting
Non-compliance with operational obligations
Data misuse or unauthorized data handling
Company dissolution or voluntary withdrawal
Failure to submit annual updates
Security incidents not properly reported or remediated
Delisting Process
DoIT issues a notice requiring written explanation within 15 days
The provider submits explanation and remediation plan
If explanation is inadequate, delisting is executed within 7 days
Delisting details are published in national newspapers and on the DoIT website
Customers must transfer services from delisted providers
Consequences of Delisting
Immediate prohibition from offering data center or cloud services
Public notification of delisted status
Mandatory customer migration to listed providers
Potential legal action for continued operation after delisting
Foreign Investment in Nepal's Data Center and Cloud Sector
Foreign participation in Nepal's data center and cloud services sector is expressly encouraged under current investment policy.
Zero Minimum Capital Requirement
Under FITTA, the information technology sector has no minimum foreign investment threshold
This is a significant advantage compared to other sectors requiring NPR 20 million minimum
Foreign investors may establish wholly-owned subsidiaries
Automatic FDI Route
Foreign investments up to NPR 500 million are approved without case-by-case screening
Approval is typically granted within 7 days for complete applications
Company registration is completed at OCR
Foreign capital must be recorded with Nepal Rastra Bank within 6 months
Repatriation of Profits
Profits, dividends, and capital gains are fully repatriable after tax compliance
The repatriation process has been streamlined following December 2025 NRB reforms
Approval is now delegated to licensed commercial banks with 15-working-day timeline
Technology Transfer Benefits
Technology transfer agreements for proprietary data center infrastructure and cloud platforms are permitted
Royalty payments for technology are regulated under FITTA
Foreign technical experts may be employed subject to work permit requirements
Tax Implications for Data Center and Cloud Service Providers
The tax framework for data center and cloud service providers in Nepal includes standard corporate provisions and IT-specific incentives.
Corporate Income Tax
Standard corporate income tax rate is 25%
Applies to net taxable income from data center and cloud service operations
VAT Obligations
VAT at 13% applies to taxable supplies if turnover exceeds NPR 2 million for services
Voluntary VAT registration is recommended for B2B service providers
Export of cloud services to foreign clients may be zero-rated
Export Incentives
IT exports may qualify for tax rebates under the Income Tax Act
Up to 75% tax rebate is available for information technology exports under certain conditions
Proper documentation of foreign earnings is required
Withholding Taxes
Payments to foreign service providers for software licenses or technical services attract 15% withholding tax
Double taxation avoidance agreements may provide relief
Tax Summary Table
Tax Type
Rate
Applicability
Corporate Income Tax
25%
On net taxable income
VAT
13%
If turnover threshold exceeded
Export Rebate
Up to 75%
For qualifying IT exports
WHT on Foreign Payments
15%
On royalties and technical fees
Dividend WHT
5%
On profit distribution
Post-Registration Compliance for Data Center and Cloud Service Providers
Ongoing compliance is mandatory to maintain DoIT listing and operate legally.
Annual Company Compliance
Annual returns must be filed with OCR within 6 months of fiscal year-end
Audited financial statements must be prepared by registered auditor
Income tax returns are due within 3 months of income year-end
Advance tax installments are payable by mid-January, mid-April, and mid-July
DoIT Annual Update
Listed providers must update registration details annually by end of Poush (mid-January)
Updated security audit reports must be submitted
Changes in technical manpower, infrastructure, or service offerings must be reported
Tier classification must be maintained or updated if infrastructure is upgraded
Security and Audit Obligations
Annual security audits must be conducted by certified auditors
Information security standard certificates must be maintained current
Vulnerability assessments and penetration testing are recommended
Incident response procedures must be documented and tested
Compliance Calendar Table
Compliance Item
Frequency
Deadline
Authority
Annual return filing
Annual
Within 6 months of fiscal year-end
OCR
Income tax return
Annual
Within 3 months of income year-end
IRD
Advance tax installments
Quarterly
Mid-Jan, Mid-Apr, Mid-Jul
IRD
DoIT annual update
Annual
End of Poush (mid-January)
DoIT
Security audit
Annual
As per audit schedule
DoIT/Internal
VAT return
Monthly/Quarterly
Within 25 days of period end
IRD
Incident reporting
As needed
Immediate upon discovery
DoIT
Cost Breakdown for Data Center and Cloud Service Registration Nepal
The total cost of establishing a data center or cloud service operation in Nepal varies based on the scale, tier classification, and service model.
Company Registration Costs
OCR registration fee: NPR 15,000
Ward office registration: NPR 5,000 to NPR 15,000 annually
PAN registration: free of charge
VAT registration: free of charge
Professional fees for legal documentation: NPR 10,000 to NPR 50,000
DoIT Listing Costs
Application and processing fees: variable
Security audit and certification: NPR 100,000 to NPR 500,000
Infrastructure compliance upgrades: variable by tier
Infrastructure Setup Costs
Tier I data center facility: NPR 5,000,000 to NPR 20,000,000
Tier II data center facility: NPR 20,000,000 to NPR 50,000,000
Tier III data center facility: NPR 50,000,000 to NPR 200,000,000
Tier IV data center facility: NPR 200,000,000+
Server hardware and networking equipment: NPR 10,000,000 to NPR 100,000,000
Uninterruptible power supply systems: NPR 2,000,000 to NPR 20,000,000
Fire safety and physical security: NPR 1,000,000 to NPR 10,000,000
Cooling and environmental controls: NPR 2,000,000 to NPR 15,000,000
Software licenses and management platforms: NPR 500,000 to NPR 5,000,000 annually
Professional Service Fees
Legal and documentation support: NPR 50,000 to NPR 200,000
Technical consultancy and tier certification: NPR 200,000 to NPR 1,000,000
DoIT liaison and application preparation: NPR 100,000 to NPR 300,000
Cost Summary Table
Cost Item
Tier I
Tier II
Tier III
Tier IV
Company Registration
NPR 15,000-75,000
NPR 15,000-75,000
NPR 15,000-75,000
NPR 15,000-75,000
DoIT Listing
NPR 100,000-600,000
NPR 100,000-600,000
NPR 100,000-600,000
NPR 100,000-600,000
Facility Construction
NPR 5M-20M
NPR 20M-50M
NPR 50M-200M
NPR 200M+
Equipment and Infrastructure
NPR 10M-30M
NPR 30M-80M
NPR 80M-300M
NPR 300M+
Professional Fees
NPR 350,000-1,300,000
NPR 350,000-1,300,000
NPR 350,000-1,300,000
NPR 350,000-1,300,000
Frequently Asked Questions
What is Data Center and Cloud Service Registration Nepal?
It is the formal process of incorporating a data center or cloud service entity under the Companies Act and obtaining mandatory listing from the Department of Information Technology under the Data Center and Cloud Services Directive, 2081.
Is DoIT listing mandatory for all data center operators?
Yes, all data center and cloud service providers must be listed with DoIT before offering services. Existing operators were required to apply within 6 months of the directive's issuance on January 28, 2025.
What are the tier classifications for data centers in Nepal?
Four tiers are established: Tier I (99.671% uptime), Tier II (99.749%), Tier III (99.982%), and Tier IV (99.995%). Government data must be stored in Tier III or higher facilities.
What is the minimum capital required for a data center in Nepal?
For domestic private limited companies, the minimum authorized capital is NPR 100,000. For foreign investors in IT services, no minimum capital requirement applies under FITTA.
Can foreigners establish data centers in Nepal?
Yes, foreign investors may establish wholly-owned data center and cloud service companies with 100% ownership. The IT sector has no minimum capital requirement and falls under the automatic FDI route.
How long does data center registration take?
Company incorporation takes 5 to 7 working days. DoIT listing takes approximately 1 month after complete application and inspection. Total timeline is typically 2 to 3 months.
What documents are required for DoIT data center listing?
Required documents include company registration, security policy, business continuity plan, IP pool details, fire safety certificate, building completion certificate, location map, tier details, technical manpower details, physical security procedures, electricity design, and IS certificates for primary and disaster recovery sites.
What documents are required for DoIT cloud service listing?
Required documents include company registration, security policy, business continuity plan, IP pool details, technical manpower details, data center location map, data center agreement if using third-party facilities, ISP/NSP affiliation, IS certificates, and IT service management certificates.
What happens if a provider operates without DoIT listing?
Operating without mandatory DoIT listing violates the Data Center and Cloud Services Directive. Penalties include delisting orders, fines, mandatory customer data transfer to listed providers, and potential legal action.
What is the validity period of DoIT listing?
DoIT listing requires annual updates by the end of Poush (mid-January). The listing remains valid provided annual updates are submitted and compliance is maintained.
Are security audits mandatory for data center operators?
Yes, annual security audits are mandatory for all DoIT-listed providers. Information security standard certificates must be maintained current for both primary and disaster recovery sites.
Can a cloud provider use third-party data centers?
Yes, cloud service providers may use third-party data center facilities. However, an agreement with the data center must be submitted to DoIT, and the underlying data center must be DoIT-listed.
What is the Integrated Data Management Center?
It is a government-operated facility that provides data center services specifically for security agencies. Security agencies are mandated to use services from this center rather than commercial providers.
What are the consequences of DoIT delisting?
Delisted providers are prohibited from offering services, publicly notified, and required to assist customers in migrating to listed providers. Continued operation after delisting attracts legal penalties.
How CorporateNp Assists with Data Center and Cloud Service Registration Nepal
Navigating the Data Center and Cloud Service Registration Nepal process requires coordination across company incorporation, DoIT listing, infrastructure compliance, and ongoing regulatory obligations. CorporateNp provides comprehensive registration and compliance services to IT entrepreneurs and foreign investors seeking to establish data center and cloud operations in Nepal.
Services Provided
Company incorporation with IT-specific memorandum and articles of association
DoIT listing application preparation and submission for data center and cloud service providers
Security policy drafting and business continuity plan development
Tier classification assessment and infrastructure compliance advisory
Coordination with DoIT for inspection and certification
Fire safety and building completion certification coordination
ISP license application support through NTA if connectivity services are offered
Tax registration and export incentive advisory
Ongoing compliance management including annual updates, security audit coordination, and regulatory reporting
Expertise and Credentials
Deep expertise in the Electronic Transactions Act, Data Center and Cloud Services Directive, Companies Act, and FITTA
Established relationships with the Department of Information Technology, Nepal Telecommunications Authority, and Office of Company Registrar
Proven track record of successful IT infrastructure registrations and DoIT listings
Call to Action
IT entrepreneurs and infrastructure investors are encouraged to contact CorporateNp for a consultation before initiating the data center and cloud service registration process.
Disclaimer
The information provided in this guide is intended for general informational and educational purposes only. It does not constitute legal, tax, or business advice. Laws and regulations in Nepal are subject to frequent amendment, and individual circumstances may vary. Readers are strongly advised to seek independent professional advice from qualified legal counsel or tax advisors before making decisions related to data center or cloud service registration. CorporateNp disclaims any liability for actions taken based on the contents of this guide.
References
For further reading and official guidance, the following authoritative sources are recommended.