Code of Federal Regulations Title 49. Transportation § 49.372.217 Seattle, WA

(a) The municipality of Seattle, Wash., itself;

(b) All points within a line drawn 15 miles beyond the municipal limits of Seattle;

(c) Those points in King County, Wash., which are not within the area described in paragraph (b) of this section, and which are west of a line beginning at the intersection of the line described in paragraph (b) of this section and Washington Highway 18, thence northerly along Washington Highway 18 to junction of Interstate Highway 90, thence westerly along Interstate Highway 90 to junction Washington Highway 203, thence northerly along Washington Highway 203 to the King County line;  and those points in Snohomish County, Wash., which are not within the area described in paragraph (b) of this section and which are west of Washington Highway 9;  and those points in Kitsap County, Wash., which are not within the area described in paragraph (b) of this section lying within the area bounded by a line beginning at the intersection of the line described in paragraph (b) of this section and Washington Highway 3 to the boundary of Olympic View Industrial Park/Bremerton–Kitsap County Airport, thence westerly, southerly, easterly, and northerly along the boundary of Olympic View Industrial Park/Bremerton–Kitsap County Airport to its juncture with Washington Highway 3 to its intersection with the line described in paragraph (b) of this section.

(d) All of any municipality any part of which is within the limits of the combined areas defined in paragraphs (b) and (c) of this section, and

(e) All of any municipality wholly surrounded, or so surrounded except for a water boundary, by the municipality of Seattle or by any other municipality included under the terms of paragraph (d) of this section.