Paris Agreement Article 6 and ITMOs: In Which Cases Does Vietnam Authorise International Transfer of Mitigation Outcomes?

Article 6 of the Paris Agreement lets countries cooperate by transferring mitigation outcomes (ITMOs) to count toward each other NDCs — but for an emission-reduction project in Vietnam, “permission to transfer internationally” is not the project owner decision: it requires host-country authorisation and a corresponding adjustment in the national climate accounts. This article sets out Vietnam framework status, the conditions for a lawful ITMO transfer, and how FDI enterprises can participate without double-counting risk.

Governing Instruments

Article 6 has two channels and one anti-double-counting principle

Article 6.2 allows participating Parties to cooperate bilaterally or multilaterally and transfer ITMOs to each other for use toward NDCs or other international purposes; Article 6.4 establishes a UN-supervised crediting mechanism (succeeding and replacing the CDM) with its own supervisory body and international registry. Both channels share one core principle: the corresponding adjustment — the transferring country adds the transferred amount back into its emissions accounts, the receiving country subtracts it, so one tonne of reduction is never counted twice toward two NDCs. Domestically, Vietnam current framework is Decree 06/2022/ND-CP as amended by Decree 119/2025/ND-CP on greenhouse-gas mitigation and the domestic carbon market — the frame for domestic allowances and credits, and the institutional foundation for Vietnam participation in Article 6 as a host country.

Authorisation status in Vietnam: a framework being completed, no open commercial pipeline

At the time of writing, Vietnam has not issued a complete, public ITMO authorisation procedure for private projects seeking to transfer mitigation outcomes abroad for use toward another country NDC. The prerequisites under the Article 6 rulebook are constant and enterprises must understand them: (1) the project/activity must be authorised by the host country to participate in the mechanism (an authorisation letter from the competent Vietnamese authority); (2) the transferred volume must receive a corresponding adjustment by Vietnam — a state decision, because it increases the national NDC delivery burden; (3) the transfer is recorded through the Paris Agreement registry and reporting system. Any commitment to sell “ITMOs from Vietnam” at this time must therefore be verified at the national-authorisation layer, not only at the commercial-contract layer.

Application Analysis

How does a corresponding adjustment affect Vietnam NDC?

Vietnam NDC is an economy-wide reduction commitment against a baseline scenario to 2030 (an unconditional part and a conditional part dependent on international support). When a domestic reduction is transferred out with a corresponding adjustment, Vietnam adds that amount back into its own accounts — the “surplus” reduction available to meet the NDC shrinks by exactly the amount sold. The policy consequence: the host country will authorise only activities beyond the reductions needed for its unconditional NDC, or activities whose conditional NDC delivery itself requires Article 6 finance. This is why ITMO authorisation is a national policy decision by sector and period, not a pure registration procedure — and why correspondingly-adjusted ITMOs always price above voluntary credits without adjustment.

How do FDI enterprises participate?

Three participation routes by readiness level: (1) prepare at project level — build the reduction project under a recognised methodology (the Article 6.4 mechanism or an independent standard), designing the project boundary and the ownership register of mitigation outcomes clearly from the investment structure onward; (2) follow and join Article 6.2 cooperative agreements Vietnam signs with partner countries (bilateral agreements are where practical ITMO authorisation first arises — only projects within an agreement scope have an authorisation path); (3) distinguish sharply in every transaction: voluntary credits on the international market (no authorisation/corresponding adjustment — usable for contribution claims, not for the buyer NDC accounting) differ fundamentally from authorised ITMOs. Mixing the two in a sale contract is currently the largest source of disputes and reputational risk.

Recommended Actions

Classify the project product precisely: voluntary credit or authorisation-requiring ITMO — never mix the concepts in transaction files.
Design mitigation-outcome ownership and authorisation-seeking rights into the project/investment structure.
Track Vietnam Article 6.2 cooperative agreements with partner countries relevant to the project sector.
Never commit to sell ITMOs before authorisation by the competent Vietnamese authority; use conditions precedent in contracts.
Price adjusted and unadjusted products in two separate scenarios; disclose transparently to buyers.

Frequently Asked Questions

In which cases does Vietnam authorise international transfer of mitigation outcomes (ITMOs)?

Only with host-country authorisation: the mitigation activity must be authorised by the competent Vietnamese authority to participate in an Article 6 mechanism, the transferred volume must receive a corresponding adjustment in Vietnam NDC accounts, and the transaction must be recorded through the Paris Agreement registry and reporting system. At the time of writing, Vietnam has no complete public commercial ITMO authorisation procedure for private projects — practical authorisation arises within state-level international cooperative arrangements.

How does the Paris Agreement Article 6 mechanism apply to a project in Vietnam?

Two channels: Article 6.2 — cooperation between countries with ITMO transfers carrying corresponding adjustments; Article 6.4 — the UN-supervised crediting mechanism with an international registry. A project in Vietnam participates as a host-country activity: it must satisfy the mechanism methodology, additionality requirements and host-country approval/authorisation before its mitigation outcomes can be transferred or used toward another country NDC.

What does a corresponding adjustment do to Vietnam’s NDC target?

When an ITMO is transferred with a corresponding adjustment, Vietnam adds the transferred amount back into its emissions accounts — the reduction available to meet its NDC shrinks by exactly the amount sold. The state therefore authorises selectively (activities beyond the unconditional NDC portion, or activities needing Article 6 finance to be viable), and correspondingly-adjusted ITMOs always carry higher value than voluntary credits without adjustment.

How can an FDI enterprise with an emission-reduction project in Vietnam join the Article 6 mechanism?

Practically in three steps: design the project under a recognised methodology and record mitigation-outcome ownership in the investment structure; follow the Article 6.2 cooperative agreements Vietnam signs with relevant countries to find the authorisation path; and never commit to sell ITMOs before competent-authority authorisation — in contracts, make national authorisation a condition precedent and distinguish the ITMO product from voluntary credits.

This article has been quality-reviewed by the FLAW AI Legal Council