63 official and specialist sources monitored.

Know what changed. Know what needs your attention.

Tideline watches ocean policy, regulation and governance while you do the rest of your job. Material developments arrive with an explanation of why they may matter and the source behind them.

£39 a month, locked for life. The founding rate ends January 2027.
Example morning edition
Your morning briefing90 second read

The BBNJ Agreement entered into force.

A material change in a policy area you follow, confirmed by the treaty text and UN depositary record.

01What changed17 Jan 2026

The Agreement is now legally in force

Work moves from ratification towards implementation and preparation for the first Conference of the Parties.

UN Treaty Collection·Article 68 and depositary record attached
02Why it needs attentionYour BBNJ watch

Implementation questions now become practical work

Teams following high seas governance can start tracking institutional decisions, national implementation and the first COP timetable.

2 primary records attachedOpen evidence →
Not just a headlineWhat changed, why it matters to your work and the records that prove it.
Selected
Material changes from the policy areas and organisations you follow
Explained
Why the development may matter to your role and current work
Cited
The primary record and relevant passage remain attached
Ready to use
Move the evidence into a project, briefing or exported report
01 Personal relevance

One development. Four different working decisions.

Tideline explains what the same verified development changes for your role, then gives you the evidence needed to act.

The verified change

The IMO postponed adoption of its Net-Zero Framework for one year.

The October 2025 decision changed the timetable for global shipping emissions rules. Each view below starts with the same decision and supporting records.

ESG and sustainable finance

Test an investment assumption before it reaches committee.

See which vessel values, fuel investments and transition claims depend on the delayed IMO timetable. Open the supporting decision and use it in your screening note.

Shipping and compliance

Separate a delay from a reason to stop preparing.

See that no new IMO obligation took effect, which regional requirements continue and what your emissions data and fuel planning teams should keep ready.

Legal and advisory

Answer the question your board or client will ask first.

Confirm that no new IMO obligation arose, then identify the contracts, public claims and regional rules that still need review.

Policy, research and reporting

Reconstruct the decision without rebuilding the record.

See the vote, state positions, agreed framework, source documents and next formal decision point in one evidence trail.

Built for analysts doing the monitoring, advisers turning it into recommendations and senior leaders accountable for the decision.
For policy and advocacy14 relevant developments
Act now

A revised regulatory text changes when organisations need to prepare

The source document and response deadline are attached to the development.

Governance changePrimary document·9h ago
Review

A formal notice opens a new opportunity to submit evidence

The timeline shows how the issue developed and which institutions acted first.

EnforcementTwo corroborating sources·4h ago
Monitor

A government position has shifted since the previous session

Tideline has preserved both statements and highlighted the material difference.

PositionOfficial statement·6h ago
02 One change, through Tideline

From discovery to a finished brief.

Follow one development through the platform. Each step removes work without removing the underlying evidence.

On 17 January 2026, the BBNJ Agreement entered into force. This example shows how Tideline could have carried that change from the UN depositary record to an internal briefing.

T Tideline
LM
Morning brief · 19 January 2026

The BBNJ Agreement is now in force

The weekday brief selects material changes from the policy areas and organisations you follow.

The Agreement entered into force on 17 January. Work now moves from ratification towards implementation and preparation for the first Conference of the Parties.
2primary records
1policy area
6followed bodies
1change to review
Why it is in your briefBBNJ implementation
NEW
Agreement entered into forceUN depositary record
WHY
Implementation work now becomes activeRelevance to your role
NEXT
Prepare for the first Conference of the PartiesConnected calendar
The summary links to the treaty text and depositary record.
03 The actual product

Explore the interface with sample data.

These are real screens from the Tideline platform, populated with example content. The scores, stories and documents shown are illustrative, not today's live data.

DashboardThe morning view. What changed overnight across your tracked domains.
Reserve a founding place
04 Cited research

Ask a question. Get an answer with the source attached.

Tideline searches a controlled library of primary documents and specialist reporting. Every substantive answer returns with evidence you can inspect.

What changed in the latest ISA mining code draft?Which states have ratified the BBNJ Agreement?What is the current IUU carding status?
BBNJ Agreement, Article 68Treaty text, UN Treaty Collection

UN Depositary RecordStatus as at 17 January 2026
The Agreement enters into force 120 days after the 60th ratification. The depositary record confirms this threshold was reached on 19 September 2025, placing entry into force on 17 January 2026.Answer drawn from 2 primary records. Passages cited below.
“This Agreement shall enter into force 120 days after the date of deposit of the sixtieth instrument of ratification, approval, acceptance or accession.” — BBNJ Agreement, Article 68(1)
05 How it works

Honest about what it does and does not know.

Tideline is sold on the quality of its sources and its usefulness, not on artificial intelligence. Technology helps classify, connect and search material. The methodology, thresholds and known blind spots are published.

Read the methodology →
i

Primary sources first

Official records, treaty texts, regulatory notices and depositary records are preferred over secondary reporting.

ii

Cited, not summarised away

Every substantive claim links to the passage that supports it. The source remains accessible alongside the answer.

iii

Quiet is a useful result

When no material development crossed your threshold, the morning briefing says so. Tideline does not fill the space.

iv

Competing claims stay visible

When authoritative sources disagree, Tideline keeps both claims visible and explains what the distinction may change.

v

Limits are published

Tracker readings carry their known blind spots. Coverage gaps are stated, not hidden behind a confident number.

Why I built this

The tool I wanted on the mornings when something might have moved.

I have worked across ocean policy and campaigns with the same open tabs, saved PDFs and worry that an important development had passed without me seeing it. Tideline is built around that problem. It has been tested with 37 people working across finance, law, compliance, journalism and conservation.

A 15 minute walkthrough is with me, not a sales team. Bring the issue, organisation or regulatory question you actually need to follow.

Luke McMillanFounder, TidelineBook 15 minutes
07 Membership

One professional plan.

Everything needed to monitor, understand and use ocean policy intelligence. Full access to the current platform, with every core research tool included.

Founding member

Full platform access

£39 a month

Locked for life. The founding rate ends at launch, January 2027. Choose your domains and the organisations you follow, then receive your first personalised briefing.

Everything included

Personal morning briefing every weekday
Live feed filtered to your work
Eleven governance trackers and alerts
Regulatory calendar and deadlines
7,700 plus document library
Cited answers from primary sources
Projects, notes and report exports
Alerts when authoritative sources disagree
At launch: £99 a month. Invoices and receipts are available for professional expenses.
For organisations

Give the whole team the same evidence base.

Discuss multiple seats, coordinated onboarding, invoicing and the policy areas your organisation needs to monitor. The conversation is directly with the founder, using a real piece of your team's work.

Discuss team accessNo generic sales call. Bring the issue, organisation or regulatory question your team follows.
08 Questions

Before you subscribe.

Clear answers about coverage, verification and how the platform fits into professional work.

Will Tideline cover the part of ocean governance I work on?

Tideline monitors official records, treaty bodies, regulators, organisations and specialist reporting across eleven ocean governance domains. During onboarding you choose your domains and the companies, public bodies, states and people you need to follow. Use the trial on your actual area of work. If it does not surface useful material for that work, do not subscribe.

What is the difference between the free weekly brief and the paid platform?

The weekly brief contains three developments selected for the wider Tideline audience. Professional membership gives you a personalised briefing every weekday, a live feed filtered to your work, followed organisations and people, alerts, the calendar, cited research and working projects.

How is my morning briefing personalised?

Three things shape it: the governance domains you select, the type of work you do and the organisations and people you follow. Those choices determine which developments are selected, how their relevance is explained and which organisations or people appear in your watchlist line.

Does Tideline use artificial intelligence?

Technology helps classify, connect and search material. Tideline is sold on the quality of its sources and its usefulness, not on AI. Ask Tideline searches the controlled document library rather than the open internet, and every substantive answer returns with evidence that you can inspect.

What happens when authoritative sources disagree?

Tideline keeps both claims visible, shows the records they came from and explains why the distinction could matter. It does not quietly select a winner or turn competing accounts into one unsupported conclusion.

Does a tracker predict what governments will decide?

No. Trackers identify when public activity is higher than usual and preparation may be justified. Method, thresholds and known blind spots are published so each reading can be judged properly.

What happens on a quiet day?

The morning briefing says that nothing material crossed your threshold. Tideline does not fill the space with weaker stories to create the appearance of activity. Quiet is a useful result when the monitored sources were checked.

Can I cancel or get access for a team?

Monthly membership can be cancelled before the next renewal. Teams can book a short conversation with the founder to discuss seats, shared workspaces and onboarding.

Your first briefing

Open the laptop already knowing what changed.

Choose what you follow and see how Tideline turns the public record into a working morning brief.