NG1 ✓ Factory-verified

Cadillac · Regular Production Option

Certification, emission, geographically restricted registration for vehicles up to 6,000 lbs GVW

Years 2000–01, 2005–06 Models 3 Factory citations 4

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Also described as Certification, emission, geographically restricted registrationCertification emission, geographically restricted registration for vehicles up to 6,000 LBS GVW

Also documented for BuickChevroletGMCHummerOldsmobilePontiacSaturn

Documented applications

Seville — G-body (1998–2004) →

• 2000–2001 ✓ Factory-verified internal
  ⛭ GM factory document — 2000 cadillac seville rpo code list, p.1.

  ⛭ GM factory document — 2001 cadillac seville rpo code list, p.1.

STS — Sigma (2005–2011) →

• 2006 ✓ Factory-verified internal
  ⛭ GM factory document — 2006 cadillac sts rpo code list, p.1.

XLR — Y-body (2004–2009) →

• 2005 ✓ Factory-verified internal
  ⛭ GM factory document — 2005 cadillac xlr rpo code list, p.1.

This page aggregates every documented appearance of NG1 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.