New Hampshire Mobile Sources regulations & environmental compliance analysis

New Hampshire Mobile Sources: What you need to know

Governing Law and Regulations

Motor vehicle standards: New Hampshire Regulations-Environmental-Air Resources (NH Regs. Env-A) 101.123 and NH Regs. Env-A 1101.01 to 1102.04

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Employer trip reduction and commuting: 42 USC 7511a(d)(1)(B)

Fuels:

Portable fuel containers: NH Regs. Env-A 4001.01 to 4006.01

Regulatory Agency

New Hampshire Department of Environmental Services (DES) Air Resources Division

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. There are many mobile source regulatory requirements implemented nationally by the U.S. Environmental Protection Agency (EPA) that impact mobile sources in New Hampshire. In addition, the state has established programs to implement optional federal programs and state-specific requirements to control mobile source emissions and make progress toward attainment of all the national ambient air quality standards.

Administration and enforcement. The DES administers and enforces the mobile source requirements in New Hampshire.

State Requirements

VEHICLE INSPECTION AND MAINTENANCE (I/M)

Inspection Area and Applicability

The New Hampshire vehicle I/M program is known as the New Hampshire OBD II and Safety Testing (NHOST) Program and it applies to all gasoline-powered passenger vehicles of 1996 model year or newer vehicles with a gross vehicle weight rating (GVWR) of 8,500 pounds or less, and all diesel-powered passenger vehicles of 1997 model year or newer vehicles with a GVWR of 8,500 pounds or less registered in New Hampshire.

Inspection Schedule

The onboard diagnostic (OBD II) inspection will be part of New Hampshire's annual enhanced vehicle safety inspection. Vehicles ...


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New Hampshire Mobile Sources Resources

Type Title
Forms Stage II System Decommissioning Notification Form
See all Mobile Sources Resources