Housing Maintenance Code Violations

Pursuant to New York City’s Housing Maintenance Code, the Department of Housing Preservation and Development (HPD) issues violations against conditions, in rental dwelling units and buildings, that have been verified to violate the New York City Housing Maintenance Code (HMC) or the New York State Multiple Dwelling Law (MDL).
Each row in this dataset contains discrete information about one violation of the New York City Housing Maintenance Code or New York State Multiple Dwelling Law. Each violation is identified using a unique Violation ID. These Laws are in place to provide requirements for the maintenance of residential dwelling units within New York City.
Violations are issued by Housing Inspectors after a physical inspection is conducted (except for class I violations which are generally administratively issued). Violations are issued in four classes: Class A (non-hazardous), Class B (hazardous), Class C (immediately hazardous) and Class I (information orders). For more information on violations, see https://www1.nyc.gov/site/hpd/owners/compliance-clear-violations.page
The base data for this file is all violations open as of October 1, 2012. Violation data is updated daily. The daily update includes both new violations and updates to the status of previously issued violations. An open violation is a violation which is still active on the Department records. See the status table for determining how to filter for open violations versus closed violations, and within open violations for a more detailed current status.
The property owner may or may not have corrected the physical condition if the status is open. The violation status is closed when the violation is observed/verified as corrected by HPD or as certified by the landlord. The processes for having violations dismissed are described at http://www1.nyc.gov/site/hpd/owners/compliance-clear-violations.page
Using other HPD datasets, such as the Building File or the Registration File, a user can link together violations issued for given buildings or for given owners.

依据《纽约市住房维护法典》（New York City Housing Maintenance Code），纽约市住房保护与开发部（HPD）会针对经核实违反《纽约市住房维护法典》（HMC）或《纽约州多户住宅法》（MDL）的租赁住宅单元及相关建筑内的违规情形，开具违规通知。
本数据集的每一行均对应一条独立的纽约市住房维护法典或纽约州多户住宅法违规通知，每条违规均通过唯一的违规编号（Violation ID）进行标识。上述法规旨在明确纽约市住宅单元的维护要求。
违规通知由住房检查员开展实地检查后开具（I类违规除外，此类违规通常为行政开具）。违规通知共分为四类：A类（非危险类）、B类（危险类）、C类（即刻危险类）以及I类（信息通知类）。如需了解违规通知的更多详情，请访问：https://www1.nyc.gov/site/hpd/owners/compliance-clear-violations.page
本数据集的基础数据为截至2012年10月1日仍处于未结案状态的所有违规通知。违规数据每日更新，更新内容包含新增违规通知及已有违规通知的状态变更。未结案违规指仍在部门记录中处于有效状态的违规。请查阅状态表以了解如何筛选未结案与已结案违规，以及在未结案违规中查看更详细的当前状态。
若违规状态为未结案，物业业主可能已完成相关物理情形的整改，也可能未整改。当HPD实地核查确认违规已整改，或房东出具整改证明后，违规状态将变更为已结案。违规通知的撤销流程详见：http://www1.nyc.gov/site/hpd/owners/compliance-clear-violations.page
用户可结合HPD的其他数据集（如建筑档案（Building File）或注册档案（Registration File）），将特定建筑或特定业主对应的违规通知进行关联整合。