1. A. Authority. Transportation Article, §5-804(a) mandates the Executive Director, by regulation, to adopt limits for cumulative noise exposure for residential land use and other categories of land use, on the basis of their noise sensitivity, with the endorsement of the Secretary of Transportation and the Secretary of the Environment and after a public hearing following 60 days notice.

2. B. Limits. Limits for cumulative noise exposure are hereby established as follows: Limits for Cumulative Noise Exposure (Annual Day-Night Average Sound Level, dB RE 20 micropascals)

   Land Use	Effective 1 July 1975
   (1) Residential, single and two family; mobile homes	65
   (2) Residential, multifamily, dormitories	65
   (3) Schools, hospitals, rest homes, homes for the aged, nursing homes	65
   (4) Libraries, churches	65
   (5) Transient lodging, hotels, motels	70
   (6) Auditoriums, concert halls	65
   (7) Sports arenas, outdoor spectator sports	70
   (8) Playgrounds, neighborhood parks	70
   (9) Golf courses, riding stables, water recreation, cemeteries	75
   (10) Office buildings, personal, business, professional	75
   (11) Commercial (retail), movie theaters, restaurants	75
   (12) Commercial (wholesale, some retail), industry, manufacturing utilities	75
   (13) Manufacturing, communications, (noise sensitive)	70
   (14) Livestock farming, animal breeding	75
   (15) Agriculture (except livestock), mining, fishing	no limit
   (16) Aviation-related (hangars, runways, maintenance facilities)	no limit

Authority: Transportation Article, §§5-204(d)(4), 5-208(a) and (b), and 5-801 et seq., Annotated Code of Maryland

Effective date: August 6, 1975 (2:17 Md. R. 1192)

Regulations .03 and .05 amended effective February 2, 1977 (4:3 Md. R. 146)

Chapter recodified from COMAR 11.03.14 to 11.03.03

Regulation .01B amended effective October 29, 1990 (17:21 Md. R. 2530); October 16, 2000 (27:20 Md. R. 1840)

Regulation .01C amended effective October 16, 2000 (27:20 Md. R. 1840)

Regulation .02 amended effective October 16, 2000 (27:20 Md. R. 1840)

Regulation .03A amended effective October 29, 1990 (17:21 Md. R. 2530); October 16, 2000 (27:20 Md. R. 1840)

Regulation .04 amended effective October 29, 1990 (17:21 Md. R. 2530); August 30, 1993 (20:17 Md. R. 1347); October 16, 2000 (27:20 Md. R. 1840)

Regulation .05 amended effective October 29, 1990 (17:21 Md. R. 2530); October 16, 2000 (27:20 Md. R. 1840)