# COMAR Title 27 — Critical Area Commission for the Chesapeake and Atlantic Coastal Bays

## Subtitle 01 — Criteria for Local Critical Area Program Development

### Chapter 11 — Directives for Updating Critical Area Maps

#### Regulation .03 Source Data Authorized for the Update of a Critical Area Map.

*COMAR 27.01.11.03*

A. In order to update maps of the Critical Area, the Department and the Commission shall use the best available source information, including:

  (1) 2007 or 2008 true color imagery or any other imagery determined appropriate by the Department and the Commission;

  (2) Rectified 1972 State Tidal Wetlands maps;

  (3) 2007 or 2008 color infrared imagery or any other imagery determined appropriate by the Department and the Commission;

  (4) Local topographic data;

  (5) Light Detection and Ranging data;

  (6) Mapping resources of a local jurisdiction;

  (7) Soils data; or

  (8) Topographic maps of the United States Geological Survey Standard Series.

B. In addition to the source information specified under §A of this regulation, the Department and the Commission may, at their discretion, use additional sources that they regard as relevant, including an on-site evaluation, a map, a photograph, or permit information.