Tiered Emissions Reporting (OGMP Tier 1-5)

Tiered emissions reporting, as defined under frameworks such as OGMP 2.0, ranks the rigour of a company’s methane reporting on a scale from Tier 1 (generic industry-average emission factors) up to Tier 5 (source-level, measured data reconciled against independent site-level or satellite measurement). Moving up the tiers means moving from estimation toward direct measurement and attribution, and the direction of regulatory and investor pressure is consistently toward the higher tiers - which is why technologies that can attribute an emissions or risk signal to a specific, evidenced location are becoming more valuable than generic estimation tools.