ADF&G groundfish statistical areas
Format
An sf object in EPSG:4326 with the complete published agency schema. STAT_AREA is the native numeric code; area_code is its six-character form. Registration, district, subdistrict, section, and sector fields retain the agency hierarchy. WATERS_CODE distinguishes FED, STATE, and INTL. Agency date fields are Unix milliseconds; missing end dates denote no stated end. Source Shape fields are retained metadata, not recomputed measurements.