Allow compliance with ASHRAE 34-2024 Addendum A with regard to A2L refrigerants in lieu of DC 2017 Mechanical
Mechanical (HVAC) at 620 I St NW, Washington
DC Department of Buildings permit MVQ2600066: issued Jun 29, 2026 for mechanical (hvac) work at 620 I St NW. Allow compliance with ASHRAE 34-2024 Addendum A with regard to A2L refrigerants in lieu of DC 2017 Mechanical Code DC 2017 Mechanical does not require leak testing of refrigerant piping or pressure integrity testing of refrigerant piping to prevent leaks. Instead it requires un-occupied shafts for refrigerant piping to have ventilation interlocked to operate if a leak is sensed. This in effect is an expensive complicated "band-aid" approach to compensate for inferior piping installations that are more prone to leaks.
- Permit number
- MVQ2600066
- Issued
- Type of work
- Mechanical (HVAC)
- Status
- Issued
- Reported cost
- Not listed
- ZIP code
- 20001
- City's category
- Construction, variance
- City's status
- Permit issued
- Source
- DC Department of Buildings permit data (this record)
Type of work and status are our own standard labels, so permits compare across cities. The city's wording is in the "City's category" and "City's status" rows. We show costs under $100 as not listed, because filers often enter $0 or $1 when the city doesn't require a cost.
All permits at 620 I St NW, and what's permitted nearby
DC Department of Buildings updated its data Oct 8, 2026. We checked it Oct 8, 19:54 UTC. See the city's official records (District of Columbia, CC BY 4.0).
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