The maximum permissible sound levels specified in <cite data-path="|health|§9-206">§ 9-206 {“Limits”} of this subtitle</cite> may be exceeded by no more than:5 dB(A) for a total of not more than 12 minutes in any 1-hour period; 10 dB(A) for a total of not more than 3 minutes in any 1-hour period; or 15 dB(A) for a total of not more than 30 seconds in any 1-hour period. Noncommercial vehicular repairs and the use of home workshops, power tools, and power garden equipment are allowed:between the hours of 7 a.m. and 9 p.m. on weekdays; and between the hours of 10 a.m. and 10 p.m. on weekends and legal holidays. Air conditioning and heat pump equipment used to cool or heat housing on residential property may exceed the maximum sound levels specified in <cite data-path="|health|§9-206">§ 9-206 {“Limits”} of this subtitle</cite> as long as the sound level does not exceed:for air conditioning equipment, 70 dB(A) at any point on the property line of any other residential property; and for heat pump equipment, 75 dB(A) at any point on the property line of any other residential property. City Code, 1976/83, art. 11, §236(b), (d) Ord. 99-548