HPD Class A, B and C violations: what each class means

Indicative rather than exhaustive — the inspector classifies the condition found, and the same nominal problem can be cited differently depending on severity.

Class A — non-hazardous

Conditions that fall short of the code without endangering anyone: a missing or defective sign or notice, minor surface defects, some record-keeping requirements. Ninety days to correct.

Class B — hazardous

Conditions that could cause harm if left: defective plaster or paint in ways that are not lead hazards, inadequate lighting in a public area, some pest infestations, a defective door or window. Thirty days.

Class C — immediately hazardous

Conditions that endanger health or safety now: no heat during heat season, no hot water, lead-based paint hazards where a young child lives, a serious infestation, a defect in a fire escape or egress, a dangerous electrical condition. Twenty-four hours.

A 24-hour correction period means that in practice the clock has already run by the time most owners learn about the violation. That is the structural problem with Class C: the window is shorter than the time it usually takes for the information to travel from an inspector to whoever can send a contractor.

Class C also attracts the sharper end of HPD’s enforcement. Conditions in this class are the ones most likely to lead to HPD arranging the repair itself and billing the owner, and they weigh most heavily in programmes that target buildings by violation history.

Heat and hot water sit here, which is why the winter months produce a spike. During heat season, which runs from 1 October to 31 May, a building must meet the required indoor temperatures, and a failure is cited as immediately hazardous.

Lead-based paint hazards in buildings with a child under six are governed by Local Law 1 of 2004 and related rules, and carry obligations that go beyond correcting the cited condition — annual investigation, specific safe work practices, and documentation that has to be retained.

Treating a lead violation as an ordinary Class C repair is a common and expensive error. The remediation work itself has rules about who may do it and how, and doing it the wrong way can create a further violation.