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the 1994 order guide prints New York State emission requirements; the merged second-generation doc writes Emission certification, geographically restricted registration.
GM Heritage factory kit — 1994 Chevrolet Astro Van, p.10.
NG1 Factory-verified
Also described as Emission certification, geographically restricted registrationEmissions, northeastern-state requirementsCertification, emission, New York StateEmission requirement, MassachusettsEmissions, northeastern-state requirements (Massachusetts and New York in 1995; the list of states varies by year)Emission requirements, New York or MassachusettsEmission requirements, New York and other listed statesCertification emission, geographically restricted registration for vehicles up to 6,000 LBS GVWEmission system, New York and MassachusettsCertification, emission, New York and MassachusettsEmission requirements, Massachusetts and New York stateEmissions certification, New York and MassachusettsEmissions, geographically restricted (California requirements outside California)Emissions, New York or Vermont state requirementsEmission system, geographically restricted regions (California requirements outside California)Emission system, New York or Vermont state requirementsCertification, emission, New York or Vermont state requirements
Also documented for BuickCadillacGMCHummerOldsmobilePontiacSaturn
Documented applications
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The 1995 to 1997 guides print Massachusetts (1996 and 1997 also New York) state emission requirements.
GM Heritage factory kit — 1995 Chevrolet Astro Van, p.12.GM Heritage factory kit — 1996 Chevrolet Astro Van, p.17.GM Heritage factory kit — 1997 Chevrolet Astro Van, p.35.
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New York (1994), Massachusetts (1995), Massachusetts and New York (1996)
GM Heritage factory kit — 1994 Chevrolet Beretta, p.12.GM Heritage factory kit — 1995 Chevrolet Beretta, p.12.GM Heritage factory kit — 1996 Chevrolet Beretta, p.10.
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the 1994 guides print New York State emission requirements
GM Heritage factory kit — 1994 Chevrolet Blazer, p.9.
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the merged second-generation doc writes geographically restricted registration
GM Heritage factory kit — 1994 Chevrolet S 10 Blazer, p.21.
- GM Heritage factory kit — 1995 Chevrolet S 10 Blazer, p.7.GM Heritage factory kit — 1996 Chevrolet S 10 Blazer, p.6.GM Heritage factory kit — 1997 Chevrolet S 10 Blazer, p.10.GM Heritage factory kit — 1999 Chevrolet S 10 Blazer, p.37.
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the 1996 guide prints "Massachusetts/NY"
GM Heritage factory kit — 1994 Chevrolet Camaro, p.7.GM Heritage factory kit — 1995 Chevrolet Camaro, p.8.GM Heritage factory kit — 1996 Chevrolet Camaro, p.14.GM Heritage factory kit — 1997 Chevrolet Camaro, p.8.GM Heritage factory kit — 1998 Chevrolet Camaro, p.9.
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New York (1994), Massachusetts (1995), Massachusetts and New York (1996)
GM Heritage factory kit — 1994 Chevrolet Caprice, p.13.GM Heritage factory kit — 1995 Chevrolet Caprice, p.7.GM Heritage factory kit — 1996 Chevrolet Caprice, p.11.
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New York in the 1994 guide; the Cavalier third-generation doc reads NG1 as emissions for the northeastern states (Massachusetts and New York in 1995)
GM Heritage factory kit — 1994 Chevrolet Cavalier, p.2.
- GM Heritage factory kit — 1995 Chevrolet Cavalier, p.8.GM Heritage factory kit — 2003 Chevrolet Cavalier, p.86.
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New York (1994), Massachusetts (1995), Massachusetts and New York (1996); same description as beretta-gen1
GM Heritage factory kit — 1994 Chevrolet Corsica, p.10.GM Heritage factory kit — 1995 Chevrolet Corsica, p.8.GM Heritage factory kit — 1996 Chevrolet Corsica, p.6.
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1994 prints New York State, 1995 Massachusetts, 1996 Massachusetts/NY
GM Heritage factory kit — 1994 Chevrolet Corvette, p.25.GM Heritage factory kit — 1995 Chevrolet Corvette, p.23.GM Heritage factory kit — 1996 Chevrolet Corvette, p.83.
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Heritage order guides only; the state list differs by year (1997: Massachusetts or New York; 1998: New York, Massachusetts or Connecticut; 1999: ten northeastern and mid-Atlantic states and the District of Columbia; 2003: New York or Vermont)
GM Heritage factory kit — 1997 Chevrolet Corvette, p.7.GM Heritage factory kit — 1998 Chevrolet Corvette, p.8.GM Heritage factory kit — 1998 Chevrolet Corvette, p.10.GM Heritage factory kit — 1999 Chevrolet Corvette, p.16.GM Heritage factory kit — 2003 Chevrolet Corvette, p.109.GM Heritage factory kit — 2003 Chevrolet Corvette, p.117.GM Heritage factory kit — 2003 Chevrolet Corvette, p.126.
- GM Heritage factory kit — 2005 Chevrolet Corvette, p.23.
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order guide emission requirement
GM Heritage factory kit — 1996 Chevrolet G Van, p.63.GM Heritage factory kit — 1997 Chevrolet Express, p.26.GM Heritage factory kit — 1998 Chevrolet Express, p.20.GM Heritage factory kit — 1999 Chevrolet G Van, p.35.
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New York State in 1994; Massachusetts in 1995; Massachusetts/New York in 1996.
GM Heritage factory kit — 1994 Chevrolet G Van, p.12.GM Heritage factory kit — 1995 Chevrolet G Van, p.5.GM Heritage factory kit — 1996 Chevrolet G Van, p.43.
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state emission requirements; 1995 and 1996 rest on the NC7 line that names it; the 1996 guide prints VG1 on the Massachusetts and New York line, not claimed
GM Heritage factory kit — 1994 Chevrolet Impala, p.4.GM Heritage factory kit — 1995 Chevrolet Impala, p.11.GM Heritage factory kit — 1996 Chevrolet Impala, p.11.
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the 2003 order guide (p.116) prints NG1 as the New York or Vermont state requirements emissions code.
GM Heritage factory kit — 2000 Chevrolet Impala, p.43.
- GM Heritage factory kit — 1995 Chevrolet Lumina, p.10.GM Heritage factory kit — 1995 Chevrolet Lumina, p.12.GM Heritage factory kit — 1996 Chevrolet Lumina, p.18.GM Heritage factory kit — 1996 Chevrolet Lumina, p.22.GM Heritage factory kit — 1999 Chevrolet Lumina, p.12.GM Heritage factory kit — 1999 Chevrolet Lumina, p.14.
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the kits describe the state lists differently by year; GM prints it as a geographically restricted registration certification in the 2001 list. 1997 from the Malibu kit order guide.
GM Heritage factory kit — 1997 Chevrolet Malibu, p.12.GM Heritage factory kit — 1998 Chevrolet Malibu, p.6.GM Heritage factory kit — 1999 Chevrolet Malibu, p.27.GM Heritage factory kit — 2003 Chevrolet Malibu, p.81.
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emissions. Printed as Massachusetts (1995), New York, Massachusetts or Connecticut (1998), and ten states plus DC (1999); the 1999 guide names NG1 only in the override line. Meaning follows the corpus majority.
GM Heritage factory kit — 1995 Chevrolet Monte Carlo, p.13.GM Heritage factory kit — 1998 Chevrolet Monte Carlo, p.11.GM Heritage factory kit — 1999 Chevrolet Monte Carlo, p.12.
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1998: also Connecticut; the 1997 list reads "Geographically Restricted Registration"
GM Heritage factory kit — 1994 Chevrolet Motorhome, p.5.GM Heritage factory kit — 1995 Chevrolet Motorhome, p.8.GM Heritage factory kit — 1996 Chevrolet Motorhome, p.6.GM Heritage factory kit — 1997 Chevrolet Motorhome, p.4.GM Heritage factory kit — 1998 Chevrolet Motorhome, p.7.
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1998-1999 lists print "MA/NY State Emission Requirements"
- GM Heritage factory kit — 1994 Chevrolet S 10, p.15.GM Heritage factory kit — 1995 Chevrolet S 10, p.10.GM Heritage factory kit — 1996 Chevrolet S 10, p.8.GM Heritage factory kit — 1997 Chevrolet S 10, p.13.
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the 2003 Silverado SS order guide reads it as New York or Vermont requirements
GM Heritage factory kit — 2003 Chevrolet Silverado 1500, p.205.GM Heritage factory kit — 2003 Chevrolet Silverado SS, p.207.
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2003 kit guide only
GM Heritage factory kit — 2003 And 2004 Chevrolet SSR, p.91.
- GM Heritage factory kit — 1994 Chevrolet Suburban, p.8.GM Heritage factory kit — 1995 Chevrolet Suburban, p.12.GM Heritage factory kit — 1996 Chevrolet Suburban, p.7.GM Heritage factory kit — 1997 Chevrolet Suburban, p.11.
- GM Heritage factory kit — 2000 Chevrolet Suburban, p.47.
- GM Heritage factory kit — 1995 Chevrolet Tahoe, p.4.GM Heritage factory kit — 1996 Chevrolet Tahoe, p.18.GM Heritage factory kit — 1997 Chevrolet Tahoe, p.12.GM Heritage factory kit — 1998 Chevrolet Tahoe, p.42.GM Heritage factory kit — 1999 Chevrolet Tahoe, p.14.
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the 2003 Tahoe order guide prints NG1 as emissions, New York or Vermont state requirements (see the 2003 row), another meaning than this list reading, which is not used for 2003
GM Heritage factory kit — 2000 Chevrolet Tahoe, p.47. -
the 2003 Tahoe order guide prints NG1 as "Emissions, New York or Vermont state requirements" (p.122, p.134, p.149); the 2000 list reading of the code is another meaning, kept in the 2000 row and not used for 2003
GM Heritage factory kit — 2003 Chevrolet Tahoe, p.122, p.134, p.149.
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the service lists do not print it
GM Heritage factory kit — 2003 Chevrolet Trailblazer, p.123.
- GM Heritage factory kit — 1997 Chevrolet Venture, p.45.GM Heritage factory kit — 2003 Chevrolet Venture, p.100.
This page aggregates every documented appearance of NG1 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.