The District is reminding landlords and property owners that keeping their tenants warm in the winter isn’t just the right thing to do — it’s the law.

In older residential buildings, where the tenants have no control over when the heat is turned on, a landlord is required to maintain the building at 68 degrees between 6:30 a.m. and 11 p.m., and 65 degrees between 11 p.m. and 6:30 a.m. Failure to comply with the regulations could result in a $1,000 fine, in addition to penalties and fees for the building’s ownerTo report a violation, call 202-442-4400.