Md. Code Regs. 08.01.03.08 – Noise Level Limits and Enforcement Schedules.

A. Exception. This regulation does not apply to devices used solely for the purpose of warning, protecting, or alerting the public of the existence of an emergency situation.
B. Snowmobiles.
1. (1) An individual may not operate a snowmobile on Department lands that produces a maximum noise exceeding the noise level limits set forth in §B(2) of this regulation, measured at a distance not less than 50 feet from the point of operation under test procedures established by the SAE.
2. (2) Noise level limits and the effective dates for enforcement are:
  Vehicle Date of Manufacture Maximum Sound Level at
  50 Feet (as tested by SAE
  J331(a) or equivalent)
  Snowmobiles Before July 1, 1976 84 dB(A)
  After July 1, 1976 78 dB(A)
C. Motorcycles and Other ORVs.
1. (1) An individual may not operate a motorcycle or other ORV on Department lands that produces a maximum noise exceeding the noise level limits set forth in §C(2) of this regulation, measured at a distance not less than 50 feet from the point of operation under test procedures established by the SAE, ANSI, or ASTM.
2. (2) Noise level limits and the effective dates for enforcement are:
  Vehicle Date of Manufacture Maximum Sound Level at
  50 Feet (as tested by SAE
  J331(a) or equivalent)
  Motorcycles and
  Other ORV's Before July 1, 1976 86 dB(A)
  After July 1, 1976 84 dB(A)

Vehicle	Date of Manufacture	Maximum Sound Level at 50 Feet (as tested by SAE J331(a) or equivalent)
Snowmobiles	Before July 1, 1976	84 dB(A)
	After July 1, 1976	78 dB(A)

Vehicle	Date of Manufacture	Maximum Sound Level at 50 Feet (as tested by SAE J331(a) or equivalent)
Motorcycles and Other ORV's	Before July 1, 1976	86 dB(A)
	After July 1, 1976	84 dB(A)

Authority: Natural Resources Article, §§1-104, 5-201, and 5-209, Annotated Code of Maryland

Effective date: December 25, 1974 (1:6 Md. R. 279)

Regulation .03A, B amended effective July 1, 1976 (3:11 Md. R. 590)

Regulations .03B, .07A amended effective January 5, 1977 (4:1 Md. R. 17)

Regulation .07B amended effective July 1, 1976 (3:11 Md. R. 590)

Regulations .09 and .10 adopted effective July 1, 1976 (3:11 Md. R. 590)

Chapter revised effective November 3, 1986 (13:22 Md. R. 2395)

Regulations .01—.11 repealed and new Regulations .01—.12 adopted effective October 4, 1999 (26:20 Md. R. 1544)

Regulation .01C, D amended effective December 22, 2014 (41:25 Md. R. 1477)

Regulation .02B amended effective December 22, 2014 (41:25 Md. R. 1477)

Regulation .03 amended effective December 22, 2014 (41:25 Md. R. 1477)

Regulation .04 amended effective December 22, 2014 (41:25 Md. R. 1477)

Regulation .05 amended effective December 22, 2014 (41:25 Md. R. 1477)

Regulation .06 amended effective December 22, 2014 (41:25 Md. R. 1477)

Regulation .07 amended effective December 22, 2014 (41:25 Md. R. 1477)

Regulation .10 amended effective December 22, 2014 (41:25 Md. R. 1477)

Regulation .11 amended effective December 22, 2014 (41:25 Md. R. 1477)

Regulation .11D amended effective February 19, 2024 (51:3 Md. R.154)

Regulation .11G adopted effective June 7, 2004 (31:11 Md. R. 856)

Regulation .12 amended effective December 22, 2014 (41:25 Md. R. 1477); February 19, 2024 (51:3 Md. R.154)