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2016 Amendments to the Large Spark Ignition (LSI) Regulation
2010 Amendments to the LSI Regulation
LSI Program Page

Regulation Applies To:
- Self-propelled vehicles (except some GSE) with
   large spark-ignition engines (gasoline, propane,
   and CNG fuel) 25 hp or greater and greater than 1
   liter displacement
- Forklifts
- Industrial tow tractors and sweeper scrubbers
- Airport ground support equipment (GSE)
► Exempt Vehicles: ▼ Exempt Vehicles:
  • - Small Fleets (3 or fewer forklifts and/or pieces of
       non-forklift LSI Engine equipment)
    - Rental or lease equipment operated 30 or fewer
       aggregated calendar days per year
    - In-field forklifts (agricultural use greater than 50%)
    - Tactical support equipment

- Labeling and Reporting (June 30, 2017)

- Prev. Record Keeping
- Fleet Average Requirements

Free Training:
- Course #505: Large Spark-Ignition (LSI) Fleet Regulation

LSI Contact:

Calls and emails are answered in the order they are received. Wait and response times are longest near annual reporting and compliance deadlines, so contact us early!

DOORS Email:

  • Response time averages one to two business days.

DOORS Hotline: 1-877-59DOORS (1-877-593-6677)

  • Staff are available to answer in English and Spanish. Calls are answered Monday through Friday; you can leave a voicemail after business hours.


Upcoming Deadlines:


June 30, 2017
  • - Labeling and Reporting

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