Permits Prior to 2022

Permits issued from 1995 to the present for Baltimore County, Maryland. Records were geocoded using a street centerline layer. For permits issued from 2002 to the present, the points were manually moved to the center of the tax parcel. Some of the points from permits issued prior to 2002 have been manually moved as part of ongoing maintenance activities. Occupancy permit dates are linked based on the unique permit number.本数据集涵盖美国马里兰州巴尔的摩县（Baltimore County, Maryland）1995年至今核发的各类许可凭证。所有记录均通过街道中心线图层完成地理编码。针对2002年至今核发的许可，其对应坐标点已被手动校正至税籍地块的几何中心。部分1995至2001年核发许可对应的坐标点，已通过持续开展的维护工作完成手动校正。入住许可（Occupancy permit）的核发日期依据唯一许可编号完成关联匹配。