A standard defines requirements, guidelines and parameters  that must be met or followed when developing a Corporate GHG Inventory (ISO 14064-1), Project-based GHG Accounting (ISO 14064-2), or a Verification Audit (ISO 14064-3).Other standards within the Voluntary Carbon Market are VCS 2007, VER+  with the VCS setting a new benchmark within the Voluntary sector( Please see Project Standards page for more detail )