The Non-Road Engine Emissions Regulations service covers regulations and proposals on the control of gaseous and particulate emissions from new and in-use spark-ignition and compression-ignition engines. It covers USA/California (including USA Reference Documents 40 CFR and California Emission Control CCR13), European Union (EC), UN Economic Commission for Europe (ECE), Brazil, Canada, China, Great Britain and more.

These non-road engine emissions regulations apply to different types of non-road engines including those manufactured for use in construction equipment, mobile and portable machinery, generators, marine engines, garden machinery, recreational vehicles and locomotives.

All regulations are delivered online at InterRegs.NET (subscription-based), or at (pay-as-you-go) - they are updated and consolidated frequently.