Circular ID TG-0.4
Version 0.10.1
Badge Core
Status Draft
Last Updated September 2026

Circular TG-0.4 · Section 0: Concepts, Definitions and Front Matter · 1 September 2026

Structure and Focus of the Technical Guidance

Explains how the Technical Guidance is organised, the meta-structure each circular follows, and the conventions for versioning and stability badges.

Version
0.10.1
Status
Draft
Stability
Core
Last updated
September 2026
Responsible officer
Dr Jordan Gacutan
Drafting
AI-assisted drafting from GOAP Secretariat source materials; source list to be published at the close of consultation.

After reading this Circular, you will understand how the Technical Guidance on Ocean Accounting is organised, the meta-structure each circular follows, the conventions for versioning, stability classification, and dependency tracking, and the production process for circulars. This Circular is a reference for authors, editors, and users of the Technical Guidance.

None.

The Technical Guidance is organised into seven sections:

SectionTitleCircularsPurpose
0Concepts, Definitions and Front Matter8 (TG-0.1—0.8)Foundational materials: conceptual framework, standards, glossary, QA principles
1Using Ocean Accounts in Decision-Making13 (TG-1.0—1.12)Policy applications: how accounts inform planning, finance, and management. TG-1.0 is the section-framing circular: it is the entry point to the section, and establishes the vocabulary the other twelve use
2Indicators13 (TG-2.1—2.13)Indicator methods: deriving decision-relevant metrics from accounts. One exception: TG-2.12 Spatial Data Frameworks is a data-methods circular on the Section 4 definition, numbered here for historical reasons and to be renumbered at the Second Edition
3Accounts Compilation16 (TG-3.1—3.16)Core methodology: building accounts tables from data sources
4Data Methods12 (TG-4.1—4.12)Data methods: collection, processing, quality assurance
5Geographic and Thematic Case Studies12 (TG-5.1—5.13; 5.12 reserved)Implementation examples from partner countries
6Thematic Methods15 (TG-6.1—6.15)Deep-dive methods for specific ecosystems, sectors, asset classes and intervention classes

Each circular is identified by: TG-[Section].[Number]

  • TG-0.1: Section 0, Circular 1
  • TG-6.14: Section 6, Circular 14 (Marine and Coastal Tourism Accounting)

The number .0 is reserved for a section-framing circular: one that establishes the vocabulary and the routing the rest of its section depends on, and that carries no method of its own. Section 1 has one, TG-1.0, because the terminology of ocean economy measurement is used by the other twelve circulars in that section. Sections without such a circular begin at .1, and a .0 is not to be created to complete a pattern.

The version number is recorded in the circular’s YAML frontmatter as a separate version field (e.g., version: "0.2.0"). Major increments reflect substantive content changes, whilst minor increments reflect editorial improvements.

Each circular carries a stability badge indicating its relationship to underlying standards. See TG-0.5 Navigating the Technical Guidance for full definitions. Summary:

BadgeMeaningUpdate Trigger
CoreBased on adopted international standards (2025 SNA, SEEA CF, SEEA EA)Only when standards are formally revised
AppliedInterprets standards for ocean context; stable but may evolveAnnual review cycle
EmergingAddresses topics where standards are still developingUpdated as standards crystallise

All circulars follow a standard structure to ensure consistency for readers. This section specifies the template for circular authors.

Every circular begins with machine-readable YAML frontmatter:

---
title: "Circular Title" # Required: Full title
circular_id: TG-X.Y # Required: Circular identifier
badge: Applied # Required: Core | Applied | Emerging
version: "0.1.0" # Required: consultation version (0.Major.Minor)
circular_status: Draft # Required: Draft | Completed | Planned
last_updated: Month Year # Required: e.g. May 2026
prerequisites: # Required: List of prerequisite circular IDs (empty array [] if none)
- TG-0.1
- TG-X.Z
enables: # Optional: Circulars this one enables
- TG-A.B
---

Editorial fields only. The block above is what a circular author writes. Each page also carries platform frontmatter — project, visibility, status, content_type, brand, sidebar_category and sidebar.order — which the /new-page skill sets and authors do not hand-edit.

status and circular_status are different fields. status is the platform publish gate (working or published) and governs whether a page is built at all. circular_status is the editorial state (Draft, Completed, Planned) shown in the metadata table. A page can be status: published and circular_status: Draft at the same time — that is the normal state for a circular out for consultation.

Note on badge: See Section 3.3 for stability classification definitions. Note on publication version: The version field reflects the public publication version, not the internal pipeline draft count. Pipeline drafts (e.g., draft-v4, draft-v6) are production artefacts only, and the publication version is confirmed by the Secretariat before a circular moves to Completed status.

The site renders a metadata table automatically from YAML frontmatter (circular_id, version, badge, circular_status, last_updated). Authors do not hand-write the display block in the markdown body.

Required frontmatter fields for the metadata table:

circular_id: TG-X.Y
version: "0.1.0"
badge: Applied # Core | Applied | Emerging
circular_status: Draft # Draft | Completed | Planned
last_updated: Month Year # e.g. May 2026

Note on Last Updated: Manually maintained by the author at publication time.

Standard Circular Template (Sections 1—4, 6)

Section titled “Standard Circular Template (Sections 1—4, 6)”
# Circular Title
## 1. Outcome
[What readers will achieve -- 1-2 paragraphs]
## 2. Requirements
[Prerequisites with hyperlinks to other circulars]
## 3. Guidance Material
### 3.1 [Topic]
### 3.2 [Topic]
...
[Core methodology -- bulk of content]
## 4. Acknowledgements
**Authors:** [To be confirmed]
**Reviewers:** [To be confirmed]
## 5. References
[Footnotes or bibliography]
## Appendixes (if needed)
### A. Worked Example
### B. Sample Code
### C. Detailed Tables

Note on numbering: Acknowledgements is always second-to-last and References always last, numbered consecutively after whatever Guidance content is present. An optional “Limitations and Considerations” section may appear between Guidance Material and Acknowledgements, in which case it becomes Section 4, whilst Acknowledgements and References shift to Sections 5 and 6 respectively.

Section 5 circulars use an adapted structure for country/regional case studies:

# [Country/Region]
## 1. Outcome
## 2. Requirements
## 3. Country/Regional Context
## 4. Implementation Approach
### 4.1 Institutional Arrangements
### 4.2 Data Sources
### 4.3 Methods Applied
## 5. Accounts Developed
## 6. Decision Applications
## 7. Lessons Learned
### 7.1 Successes
### 7.2 Challenges
### 7.3 Recommendations
## 8. Acknowledgements
## 9. References
## Appendixes

Note: This template has not yet been validated against compiled Section 5 drafts. Authors should cross-check against TG-5.x working drafts when available.

Section 0 circulars have unique structures appropriate to their purpose:

  • 0.1 General Introduction: Extended conceptual content with figures
  • 0.5 Navigating: Primarily visual/tabular (dependency graphs, pathways)
  • 0.6 Glossary: Definition list format organised alphabetically
  • 0.7 QA Principles: Reference document format with standards citations

Any Section 0 circular not listed above follows the Standard Circular Template.

SectionPurposeKey requirements
1. OutcomeState what readers will achieve1-2 paragraphs; active voice; specific capability or knowledge gained
2. RequirementsList prerequisitesHyperlinked circular IDs with brief description; “None” if no prerequisites
3. Guidance MaterialCore methods and explanationsHierarchical subsections; cite standards with paragraph numbers; tables and figures for complex content
4. Limitations (optional)Caveats and misapplication risksInclude when methodology has significant limitations; flexible length
AcknowledgementsAuthors and reviewersList with affiliations
ReferencesCitationsFootnote format for in-text citations; numbered list acceptable when no in-text anchors present

Each section’s scope is stated in Section 3.1. The tests below say what that scope means when an author is deciding whether a passage belongs in the circular they are writing. They were derived from the Section 1 review of September 2026 and the Section 3 review that followed it, both of which found method distributed across sections that had no rule to test it against.

SectionThe circular givesIt cross-refers for
1 Decision-MakingWhich accounts and indicators bear on a decision, how to read them, how to present themHow they are built (2, 3, 4, 6)
2 IndicatorsThe indicator’s definition, normalisation and aggregationThe account it is derived from (3)
3 Accounts CompilationThe account table — its rows, columns and accounting identities — and the compilation procedure that populates itSector-specific method (6), measurement protocol and data source (4), the indicator derived from it (2), the decision that uses it (1)
4 Data MethodsThe variable delivered to an account: definition, source, unit, coverage, reference value, uncertainty, quality tierThe account the variable enters (3)
5 Case StudiesWhat one country did and what others can act onEvery method it applied
6 Thematic MethodsMethod specific to one ecosystem, sector, asset class or intervention classThe generic account structure it populates (3), the measurement protocol (4), the indicator derived from it (2), and readiness and sequencing (0.8)

Two consequences are worth stating explicitly, because both have been breached in practice:

  • A Section 4 worked example may show a variable being produced and quality-assured; it should not show an account being balanced. Balancing an account is Section 3 work, and so is the valuation choice that populates a monetary cell.
  • Section 3 keeps what generalises across assets — the boundary decision, the classification into SEEA asset categories, the account rows and identities. Sector-specific method belongs in Section 6, named by circular. Where a Section 3 circular is the only place a method appears, it moves rather than being deleted.
  • Section 6 is not only ecosystems and industries. The row above was widened in September 2026 after a read-across of the whole section found four circulars that the earlier wording did not admit: TG-6.11 treats an asset class, TG-6.12 a residual-flow class, TG-6.13 a spatial interface between two accounting domains, and TG-6.15 an intervention class. All four give method specific to their subject and cross-refer for the generic structure, which is the operative half of the test; the earlier wording named only ecosystems and sectors and so excluded them by accident rather than by decision.
  • Where two Section 6 circulars can record the same entry, one of them owns it and says so. The read-across found four such overlaps — submerged artificial structures, the coastal protection service, blue carbon pricing, and nutrient loads to coastal waters — each recorded in two places without a rule. A Section 6 circular that shares an account entry with another must name the owner in its boundary statement or at the point of overlap.

Every circular in Sections 1 to 4 and 6 should carry a short boundary statement, in its :::note[Framework Position] block or immediately after it, naming which account or decision it owns and which circulars own the method it excludes. TG-3.9 is the model.


Page counts refer to rendered PDF A4 pages at approximately 500 words per page. These are guidance targets, not enforced limits.

SectionTypical LengthNotes
Section 0 (Front Matter)Variable0.1 and 0.5 are longer by design
Section 1 (Decision-Making)4—6 pagesConceptual + examples
Section 2 (Indicators)~4 pagesMethods focus
Section 3 (Accounts Compilation)6—8 pagesDetailed methodology
Section 4 (Data Methods)4—6 pagesPractical procedures
Section 5 (Case Studies)8—12 pagesFull treatment
Section 6 (Thematic Methods)6—8 pagesEcosystem/sector deep-dives

Format: v0.[Major].[Minor] — the leading 0. marks the consultation edition, which is not adopted guidance

  • Major version (v0.1.0 → v0.2.0): Substantive content changes — new standards incorporated, significant methodological corrections, structural reorganisation
  • Minor version (v0.1.0 → v0.1.1): Editorial improvements — clarifications, added examples, typographic corrections, updated cross-references
  • All circulars undergo annual review to assess whether updates are needed
  • Core circulars are updated only when underlying standards change
  • Applied and Emerging circulars may be updated based on implementation experience

Superseded versions will be archived, with the URL scheme to be confirmed. The current version always appears at the canonical URL.


Table 7.1.1 below summarises the full per-circular review lifecycle for the Second Edition.

PhaseDescription
TriageIssues raised against each draft are triaged (immediate-fix, verification-needed, user-input-needed) and recorded in the draft’s issue inventory.
Draft compilationA new draft is compiled applying all closed/fixed resolutions; each draft has a paired revision log.
Director reviewThe draft undergoes a director-level quality gate; findings logged in director-review-vN.md.
Director fixesActionable director-review findings are applied to the draft.
Secretariat reviewNew issues raised are logged in secretariat-review-vN.md and feed the next triage cycle.
PublicationApproved circular published with DOI assignment.

Internal production uses an extended triage / director-review / Secretariat-review pipeline. Details are documented in project tooling and are not part of this public-facing circular.

Circulars are published on a monthly cadence following Secretariat review, with publication frequency varying by batch. Priority circulars may be fast-tracked, and updates to existing circulars are published as needed.


Dependencies are tracked in two ways:

  1. YAML frontmatter: prerequisites and enables fields in each circular
  2. Prose requirements section: Human-readable list with hyperlinks (Section 2 of each circular)

The prerequisites field and the prose Requirements section must be kept synchronised. The enables field is machine-readable only and has no prescribed prose counterpart.

PrincipleGuidance
Explicit prerequisitesOnly list circulars that are genuinely required.
Minimal dependenciesAvoid unnecessary prerequisites that create barriers.
Bidirectional trackingWhen adding a prerequisite, update the enables field of the prerequisite circular.
Foundational circularsExplicit listing of foundational circulars (e.g., TG-0.1) is recommended even when transitively covered; omit only for mid-chain intermediaries.

See TG-0.5 Navigating the Technical Guidance for the visual dependency graph.


Cross-cutting themes are catalogued in TG-0.5 Navigating the Technical Guidance. Authors should ensure consistency with the treatments described there. Key threads include:

ThemeThread
Spatial methods0.1 (BSU concept) → 3.1 (spatial asset delineation) → 4.1 (remote sensing) → 6.x (ecosystem-specific)
Monetary valuation1.9 (whether and when to value) → 2.4 §3.10 (method preference order and the methods themselves) → 3.1 §3.3 (asset-level NPV) → 6.x (context-specific) → 5.x (case studies)
Uncertainty0.7 (QA principles) → relevant methods circulars
Governance1.1—1.2 (decision-making entry points) → 3.7 (governance accounts) → 5.x (all case studies)
Traditional knowledge0.1 (conceptual framing) → 3.6 (traditional knowledge accounts) → 5.x (case studies)
Sub-national applicability3.11 (sub-national accounts) → 5.x (case studies, where applicable)
Ocean economy1.0 (terms, and what an account can certify) → 3.3 (boundary and account) → 2.5 (indicators) → 1.1 / 1.10 (use) → 5.x (case studies)

Authors: [To be confirmed]

Reviewers: [To be confirmed]


  1. GOAP. (2024). Discussion Paper: Modular Structure for GOAP Technical Guidance (internal working paper, GOAP Secretariat, not publicly distributed). Global Ocean Accounts Partnership.

  2. United Nations. (2025). System of National Accounts 2025. United Nations.

  3. United Nations. (2021). System of Environmental-Economic Accounting—Ecosystem Accounting. United Nations.

  4. UNECE. (2019). Generic Statistical Business Process Model (GSBPM), Version 5.1.