Analysis of information sources in references of the Wikipedia article "Voluntary Emission Reduction" in English language version.
Credits sourced specifically for the OTC market are often generically referred to as Verified (or Voluntary) Emission Reductions (VERs) (p 9)
A VER project has its GHG emission reductions certified under a voluntary certification process. VERs (Verified Emission Reductions) can be traded on the so-called voluntary carbon market
