The Paris Agreement Crediting Mechanism (PACM) is a global initiative designed to improve the quality and integrity of carbon credits. Carbon credits are permits that allow companies to offset their greenhouse gas (GHG) emissions. Companies invest in projects that reduce or remove CO₂ from the atmosphere.

The Paris Agreement Crediting Mechanism (PACM) was established under Article 6.4 of the Paris Agreement. This article allows countries to pool and trade emission reduction units, also known as A6.4ERs (Article 6.4 Emission Reduction Units), to achieve their climate goals.  (More on unfccc.int)