§ 9-208. Permitted deviations.

(a) Short, durational deviations.

The maximum permissible sound levels specified in § 9-206 {"Limits"} of this subtitle may be exceeded by no more than:

(1) 5 dB(A) for a total of not more than 12 minutes in any 1-hour period;

(2) 10 dB(A) for a total of not more than 3 minutes in any 1-hour period; or

(3) 15 dB(A) for a total of not more than 30 seconds in any 1-hour period.

(b) Home activities — vehicle repairs; power tools.

Noncommercial vehicular repairs and the use of home workshops, power tools, and power garden equipment are allowed:

(1) between the hours of 7 a.m. and 9 p.m. on weekdays; and

(2) between the hours of 10 a.m. and 10 p.m. on weekends and legal holidays.

(c) Home activities — air conditioners; heat pumps.

Air conditioning and heat pump equipment used to cool or heat housing on residential property may exceed the maximum sound levels specified in § 9-206 {"Limits"} of this subtitle as long as the sound level does not exceed:

(1) for air conditioning equipment, 70 dB(A) at any point on the property line of any other residential property; and

(2) for heat pump equipment, 75 dB(A) at any point on the property line of any other residential property.