4 Tex. Admin. Code § 3.110
The Western High Plains Boll Weevil Eradication Zone shall consist of the following area originally included as a part of the Southern High Plains/Caprock Eradication Zone described at the Texas Agriculture Code, § RSA 74.1021(e): all of Andrews, Gaines and Yoakum Counties; all of Terry County except for all land north of a line 1.25 miles south of the Hockley County line from FM 303 east to Highway 385 and all land north and east of a line with boundaries of County Road 230, County Road 525 also known as Cemetery Road, and County Road 280 to the Lynn County line; and all of Lynn County except for all land north and east of a line 5 miles north of Highway 380 following County Road 18 that extends from the Terry County line east for 10 miles, then turns south to Highway 380, and runs east to the intersection of FM 212 before turning south to the Borden County line.
4 Tex. Admin. Code § 3.110