Class A means non-hazardous, Class B means hazardous, and Class C means immediately hazardous. Do not stop at the letter. Class C correction periods vary by condition, from no correction period for heat and hot water to 24 hours, 14 days, or 21 days for other specified hazards. Confirm the current requirement in the cited agency system and in any notice issued for the property.
Use the class to triage, not to guess
The class is an urgency signal. The full order identifies the condition and may trigger special personnel, testing, notices, or documents. Two Class C violations can require very different work and filing paths.
Open the detail in HPD Online , then compare the violation with the Notice of Violation. Record both the correction date and certification date rather than creating one generic deadline.
- Read the class and the full order description rather than prioritizing from a short dashboard label.
- Check whether the condition is lead, window guard, mold, pest, self-closing door, heat, or another Class C issue with a special timetable.
- Compare the correction and certification dates and flag any date that has already passed.
Assign the repair path for the cited hazard
Protect occupants first, then match the work to the exact order. Lead, mold, pests, heat, window guards, and self-closing doors have dedicated guidance that should be followed before certification.
- Triage immediately hazardous conditions first and protect occupants while lawful repair is arranged.
- Assign the repair based on the actual condition and any licensed or certified contractor requirement.
- Collect proof and certify within the window shown when certification remains available.
- Use HPD’s dismissal or reissuance path for old or late items and verify the resulting status.
Class C does not have one deadline
HPD publishes the following correction periods. The notice controls when its date or special order differs.
| Class or condition | Hazard level | Correction period |
|---|---|---|
| Class A | Non-hazardous | 90 days |
| Class B | Hazardous | 30 days |
| Class C: lead, window guards, mold, mice, cockroaches, or rats | Immediately hazardous | 21 days |
| Class C: self-closing doors | Immediately hazardous | 14 days |
| Class C: heat or hot water | Immediately hazardous | No correction period |
| Other Class C | Immediately hazardous | 24 hours |
Classification mistakes to avoid
Use this list as a final review before filing, paying, certifying, or closing the internal task.
- Giving every Class C item a 24-hour deadline without checking the condition.
- Waiting for a filing decision before protecting occupants from an immediate hazard.
- Using the class letter as the repair scope instead of reading the order.
- Missing the separate certification date.
Keep urgency, work, and filing evidence together
The file should make it clear why the item received its priority and how the completed work matched the order.
- Violation class and complete order
- Correction and certification dates
- Hazard-specific repair evidence
- Certification or later clearance result
Do not downgrade the record until HPD does
The priority can drop after the hazard is physically corrected, but the compliance record remains open until the required HPD process is complete.
Physical safety can improve before the public record changes. Keep agency follow-up separate from the urgent repair milestone.
This article provides general information and is not legal advice.




