THE BASIC PROCESS FOR NOM‑163

THE BASIC PROCESS FOR NOM‑163

What NOM‑163 covers

It sets energy‑efficiency and CO₂ emission requirements for new light‑duty vehicles with a curb weight ranging from 400 kg to 3,857 kg, covering:

✅ Passenger vehicles / Light‑duty commercial vehicles

✅ Gasoline, diesel and alternative‑fuel vehicles

✅ HEVs, PHEVs, extended‑range electric vehicles and fuel‑cell vehicles

Key Implementation Timeline Official publication date: January 3, 2024 (Official Gazette) Effective date: July 2, 2024 (180 calendar days after publication) Applicable model years: Model years up to 2028 (i.e., model years 2025, 2026 and 2027 shall comply with the new regulation)

Note: The new credit rules and offset mechanisms apply to model years 2025‑2027. Compliance assessment may be performed by PROFEPA or a third‑party UIA.

What ARC Testing & Certification can do

We focus on the full‑scope Mexico certification process and provide the following services:

🔹 Applicability assessment – determine whether NOM‑163 compliance is mandatory

🔹 Technical and document review – verification of emission data, sales ledgers and adjustment factors

🔹 Fleet‑level compliance modelling – simulate credit surpluses/deficits under different sales scenarios

🔹 Support for certificates / compliance reports – efficient liaison with official authorities

🔹 New‑model launch consulting – full‑cycle strategy from certification to market launch

Per regulatory requirements, enterprises manufacturing complementary automotive wheel products shall comply with INMETRO Ordinance 501/2021 to complete the certification process.