Zone 1 – Northwestern Arkansas. From northwestern corner of Arkansas; south on the Arkansas-Oklahoma state line to U.S. Highway 62; east on U.S. Highway 62 to Arkansas Highway 16 at Fayetteville; east on Arkansas Highway 16 to Kings River; north on Kings River to the Arkansas-Missouri state line; west on the Arkansas-Missouri state line to the northwestern corner of Arkansas.

Zone 1A –

Zone 2 – Western half of north-central Arkansas. From intersection of Arkansas-Missouri state line and Kings River; south on Kings River to Arkansas Highway 16; east on Arkansas Highway 16 to Arkansas Highway 21 near Fallsville; north on Arkansas Highway 21 to Arkansas Highway 16 near Swain; east on Arkansas Highway 16 to Arkansas Highway 27 near Tilly; north on Arkansas Highway 27 to Arkansas Highway 254; east on Arkansas Highway 254 to U.S. Highway 65 at Dennard; north on U.S. Highway 65 to Arkansas Highway 66 at Leslie; east on Arkansas Highway 66 to Arkansas Highway 58 at Mountain View; east on Arkansas Highway 58 to the White River; north on the White River to U.S. Highway 62; west on U.S. Highway 62 to Arkansas Highway 14 at Yellville; west on Arkansas Highway 14 to U.S. Highway 65; north on U.S. Highway 65 to Arkansas-Missouri state line; west on Arkansas-Missouri state line to Kings River.

Zone 3 – Eastern half of north-central Arkansas. From intersection of Arkansas-Missouri state line and U.S. Highway 65; south on U.S. Highway 65 to Arkansas Highway 14; east on Arkansas Highway 14 to U.S. Highway 62 at Yellville; east on U.S. Highway 62 to White River; south on White River to Black River; north on Black River to Current River; north on Current River to Arkansas-Missouri state line; west on Arkansas-Missouri state line to western edge of Bull Shoals Lake.

Zone 4 (Section 1) – Western portion of northeastern Arkansas. From intersection of Current River and Arkansas-Missouri state line; south on Current River to Black River; south on Black River to White River; south on White River to Arkansas Highway 14; east on Arkansas Highway 14 to Arkansas Highway 17; south on Arkansas Highway 17 to Arkansas Highway 14; east on Arkansas Highway 14 to Arkansas Highway 145; south on Arkansas Highway 145 to Arkansas Highway 37; south on Arkansas Highway 37 to Arkansas Highway 42; east on Arkansas Highway 42 to U.S. Highway 49; south on U.S. Highway 49 to Interstate 40 near Brinkley; east on Interstate 40 to Arkansas Highway 1 near Forrest City; north on Arkansas Highway 1 to Craighead County Road 407 (Lawson Road); west on Craighead County Road 407 (Lawson Road) to Christian Valley Road; west on Christian Valley Road to U.S. Highway 49; west on U.S. Highway 49 to Arkansas Highway 226; west on Arkansas Highway 226 to Arkansas Highway 349; north on Arkansas Highway 349 to Arkansas Highway 91; north on Arkansas Highway 91 to U.S. Highway 63; north on U.S. Highway 63 to Arkansas Highway 228; east on Arkansas Highway 228 to U.S. Highway 412; east on U.S. Highway 412 to Arkansas Highway 141; north on Arkansas Highway 141 to U.S. Highway 62; east on U.S. Highway 62 to Arkansas Highway 139; north on Arkansas Highway 139 to Arkansas-Missouri state line; west on Arkansas-Missouri state line to Current River.

Zone 4A (Section 1) – Western portion of east-central Arkansas. From intersection of Interstate 40 and U.S. Highway 49 near Brinkley; south on U.S. Highway 49 to Arkansas Highway 39; south on Arkansas Highway 39 to Arkansas Highway 316; east on Arkansas Highway 316 to Arkansas Highway 318; east on Arkansas Highway 318 to Arkansas Highway 20; east on Arkansas Highway 20 to Phillips County Road 422 at Modoc; east on Phillips County Road 422 to the Mississippi River levee; north on the Mississippi River levee to U.S. Highway 49; north on U.S. Highway 49 to Arkansas Highway 1 at Walnut Corner; north on Arkansas Highway 1 to I-40 at Forrest City; west on I-40 to U.S. Highway 49 near Brinkley.

Zone 4 (Section 2) – Eastern portion of northeastern Arkansas. From U.S. Highway 62 and the St. Francis River at the Arkansas-Missouri state line; west on U.S. Highway 62 to U.S. Highway 49; south on U.S. Highway 49 to Arkansas Highway 1 near Jonesboro; south on Arkansas Highway 1 to Arkansas Highway 163; south on Arkansas Highway 163 to Poinsett County Road 33 (Cromwell Cutoff Lane and Bay Lane); south on Poinsett County Road 33 (Cromwell Cutoff Lane and Bay Lane) to Arkansas Highway 373; south on Arkansas Highway 373 to Arkansas Highway 163; south on Arkansas Highway 163 to U.S. Highway 64; east on U.S. Highway 64 to St. Francis River Levee; south on the St. Francis River Levee to Interstate 40; east on Interstate 40 to the Mississippi River levee; north on Mississippi River levee to the Arkansas-Missouri state line; west on the Arkansas-Missouri state line to the St. Francis River; north on the St. Francis River to U.S. Highway 62.

Zone 4A (Section 2) – Eastern portion of east-central Arkansas. From intersection of Interstate40 and the Mississippi River levee at West Memphis; south on the Mississippi River levee to Arkansas Highway 131 at Seyppel; north on Arkansas Highway 131 to Arkansas Highway 147; south on Arkansas Highway 147 to Arkansas Highway 38; west on Arkansas Highway 38 to St. Francis County Road 619; south on St. Francis County Road 619 to Crittenden County Road 47; south on Crittenden County Road 47 to Arkansas Highway 147; north on Arkansas Highway 147 to Crittenden County Road 285; south on Crittenden County Road 285 to the Mississippi River levee; south on the Mississippi River levee to its end near the St. Francis River; on a line due west from this point to the St. Francis River; north on the St. Francis River to I-40 near Madison; east on I-40 to the Mississippi River levee at West Memphis.

Zone 5 – Northern portion of Crowley’s Ridge. From intersection of Arkansas-Missouri state line and Arkansas Highway 139; south on Arkansas Highway 139 to U.S. Highway 62; west on U.S. Highway 62 to Highway 141; south on Arkansas Highway 141 to U.S. Highway 412; west on U.S. Highway 412 to Arkansas Highway 228; west on Arkansas Highway 228 to U.S. Highway 63; south on U.S. Highway 63 to Arkansas Highway 91; south on Arkansas Highway 91 to Arkansas Highway 349; south on Arkansas Highway 349 to Arkansas Highway 226; east on Arkansas Highway 226 to U.S. Highway 49; north on U.S. Highway 49 to Christian Valley Drive; east on Christian Valley Drive to Craighead County Road 407 (Lawson Road); east on Craighead County Road 407 (Lawson Road) to Arkansas Highway 1; south on Arkansas Highway 1 to Interstate 40 near Forrest City; east on Interstate 40 to St. Francis River Levee; north on St. Francis River Levee to U.S. Highway 64; west on U.S. Highway 64 to Arkansas Highway 163; north on Arkansas Highway 163 to Arkansas Highway 373; north on Arkansas Highway 373 to Poinsett County Road 33 (Bay Lane and Cromwell Cutoff Lane); north on Poinsett County Road 33 (Bay Lane and Cromwell Cutoff Lane) to Arkansas Highway 163; north on Arkansas Highway 163 to Arkansas Highway 1; north on Arkansas Highway 1 to U.S. Highway 49 at Jonesboro; north on U.S. Highway 49 to U.S. Highway 62; north on U.S. Highway 62 to St. Francis River; north on St. Francis River to Arkansas-Missouri state line; west on Arkansas-Missouri state line to Arkansas Highway 139.

Zone 5A – Southern portion of Crowley’s Ridge. From Interstate 40 and Arkansas Highway 1 at Forrest City; south on Arkansas Highway 1 to U.S. Highway 49 at Walnut Corner; south on U.S. Highway 49 to Mississippi River levee; north on Mississippi River levee to FDR 1901 (low road); north on FDR 1901 to St. Francis National Forest boundary; north and east on St. Francis National Forest boundary to Mississippi River; north on Mississippi River to St. Francis River; north on St. Francis River to I-40 near Madison; west on I-40 to Arkansas Highway 1 at Forrest City.

Zone 6 – South-central portion of northwestern Arkansas and southern portion of the Ozark Highlands. Start at the Arkansas-Oklahoma State Line and U.S. Hwy 62; south on the Arkansas-Oklahoma State Line to U.S. Interstate 540; east on U.S. Interstate 540 to U.S. Interstate 40; east on U.S. Interstate 40 to U.S. Hwy 64 near Lamar; west on U.S. Hwy 64 to Hwy 123; north on Hwy 123 to Hwy 123/164; east on Hwy 123/164 to Hwy 7/164; south on Hwy 7/164 to Dover; north on Hwy 27 to Hwy 105; south on Hwy 105 to Hwy 124; east on Hwy 124 to Hwy 95 at Wonderview; north on Hwy 95 to Hwy 65 Business Route at Clinton; north on Hwy 65 Business Route to Hwy 16; east on Hwy 16 to Hwy 16/110 near Shirley; east on Hwy 16/110 to Hwy 92 at Greers Ferry; east on Hwy 92 to Hwy 25 at Drasco; north on Hwy 25 to Hwy 87 at Concord; south on Hwy 87 to U.S. Hwy 167 near Pleasant Plains; north on U.S. Hwy 167 to the White River at Batesville; west on White River to Hwy 58 near Guion; west on Hwy 58 to Hwy 14; west on Hwy 14 to Hwy 66 at Mountain View; west on Hwy 66 to U.S. Hwy 65 at Leslie; south on U.S. 65 to Hwy 254 at Dennard; west on Hwy 254 to Hwy 27; west on Hwy 27 to Hwy 16; west on Hwy 16 to State Hwy 7 at Sand Gap; north on State Hwy 7 to Hwy 16 near Deer; west on Hwy 16 to U.S. Hwy 62 at Fayetteville; west on U.S. Hwy 62 to Arkansas-Oklahoma State Line.

Zone 7 – Western portion of Arkansas River Valley. From intersection of Interstate 49 and Arkansas-Oklahoma state line; north on I-49 to I-40; east on I-40 to Arkansas Highway 9 at Morrilton; south on Arkansas Highway 9 to Arkansas Highway 10 at Perry; west on Arkansas Highway 10 to Arkansas Highway 23 at Booneville; south on Arkansas Highway 23 to U.S. Highway 71; north on U.S. Highway 71 to Arkansas Highway 96; west on Arkansas Highway 96 to Arkansas-Oklahoma state line; north on Arkansas-Oklahoma state line to I-49.

Zone 8 – Eastern portion of the Arkansas River Valley. Start at U.S. Hwy 167 and the White River at Batesville; southeast on the White River to Hwy 14 at Newport; east on Hwy 14 to U.S. Hwy 67; south on U.S. Hwy 67 to U.S. Hwy 64/67/167 at Bald Knob; south on U.S. Hwy 64/67/167 to Hwy 36; west on Hwy 36 to Hwy 305; south on Hwy 305 to Hwy 31 at Floyd; north on 31 to Hwy 5; south on Hwy 5 to Hwy 310; west on Hwy 310 to Hwy 36, west on Hwy 36 to U.S. Hwy 64; west on U.S. Hwy 64 to U.S. Hwy 65B at Conway; south on U.S. Hwy 65B to Hwy 60; west on Hwy 60 to Hwy 9 at Perryville; north on Hwy 9 to U.S. Interstate 40 at Morrilton; west on U.S. Interstate 40 to U.S. Hwy 64 near Lamar; west on U.S. Hwy 64 to Hwy 123; north on Hwy 123 to Hwy 123/164; east on Hwy 123/164 to Hwy 7/164; south on Hwy 7/164 to Dover; north on Hwy 27 to Hwy 105; south on Hwy 105 to Hwy 124; east on Hwy 124 to Hwy 95 at Wonderview; north on Hwy 95 to Hwy 65 Business Route at Clinton; north on Hwy 65 Business Route to Hwy 16; east on Hwy 16 to Hwy 16/110 near Shirley; east on Hwy 16/110 to Hwy 92 at Greers Ferry; east on Hwy 92 to Hwy 25 at Drasco; north on Hwy 25 to Hwy 87 at Concord; south on Hwy 87 to U.S. Hwy 167 near Pleasant Plains; north on U.S. Hwy 167 to the White River at Batesville.

Zone 9 – East-central Arkansas. From intersection of Arkansas Highway 14 and U.S. Highway 67 near Newport; south on U.S. Highway 67 to Interstate 40 in North Little Rock; west on Interstate 40 to I-30; west on I-30 to Arkansas River; south on Arkansas River to U.S. Highway 79B; north on U.S. Highway 79B to U.S. Highway 79; north on U.S. Highway 79 to Arkansas Highway 152; east on Arkansas Highway 152 to U.S. Highway 165; south on U.S. Highway 165 to Arkansas River; northeast on Arkansas River to confluence with Arkansas Post Canal; east on Arkansas Post Canal to confluence with White River; southeast on Arkansas-Desha county line, following White River to Missouri-Pacific railroad; northeast on Missouri-Pacific railroad to intersection of western line of Section 9, T8S, R1W; north on western line of Section 9 to southwestern corner of Section 4, T8S, R1W; north along western line of Section 4 to north line of T8S, R1W; east along north line of T8S, R1W to intersection of Missouri-Pacific railroad; northeast on MissouriPacific railroad to intersection of Mississippi River levee south of Snow Lake; northeast on Mississippi River levee to Phillips County Road 422; west on Phillips County Road 422 to Arkansas Highway 20 at Modoc; west on Arkansas Highway 20 to Arkansas Highway 318; west on Arkansas Highway 318 to Arkansas Highway 316; west on Arkansas Highway 316 to Arkansas Highway 39 at Turner; north on Arkansas Highway 39 to U.S. Highway 49; north on U.S. Highway 49 to Arkansas Highway 42 at Hickory Ridge; west on Arkansas Highway 42 to Arkansas Highway 37; north on Arkansas Highway 37 to Arkansas Highway 145; north on Arkansas Highway 145 to Arkansas Highway 14 to Arkansas Highway 17; north on Arkansas Highway 17 to Arkansas Highway 14; west on Arkansas Highway 14 to White River; west on Arkansas Highway 14 to U.S. Highway 67 near Newport.

Zone 10 – Central Arkansas River Valley. From intersection of U.S. Highway 67 and Arkansas Highway 36; west on Arkansas Highway 36 to Arkansas Highway 305; south on Arkansas Highway 305 to Arkansas Highway 31 at Floyd; north on Arkansas Highway 31 to Arkansas Highway 5; south on Arkansas Highway 5 to Arkansas Highway 310; west on Arkansas Highway 310 to Arkansas Highway 36; west on Arkansas Highway 36 to U.S. Highway 64; west on U.S. Highway 64 to U.S. Highway 65B; south on U.S. Highway 65B to Arkansas Highway 60; west on Arkansas Highway 60 to Arkansas Highway 9; south on Arkansas Highway 9 to Arkansas Highway 10 at Williams Junction; east on Arkansas Highway 10 to Interstate 430; west on I-430 to I-30; east on I-30 to I-40; east on I-40 to U.S. Highway 67; north on U.S. Highway 67 to Arkansas Highway 36.

Zone 11 – West-central Arkansas. From intersection of Arkansas Highway 9 and Arkansas Highway 10 at Perry; west on Arkansas Highway 10 to Arkansas Highway 23 at Booneville; south on Arkansas Highway 23 to U.S. Highway 71; north on U.S. Highway 71 to Arkansas Highway 96; west on Arkansas Highway 96 to Arkansas-Oklahoma state line; south along Arkansas-Oklahoma state line to Arkansas Highway 8; east on Arkansas Highway 8 to junction of U.S. Highway 71; south on U.S. Highway 71 to Arkansas Highway 246; east on Arkansas Highway 246 to Arkansas Highway 84 at Athens; east on Arkansas Highway 84 to U.S. Highway 70 at Salem; east on U.S. Highway 70 to Arkansas Highway 227; north on Arkansas Highway 227 to U.S. Highway 270; east on U.S. Highway 270 to Arkansas Highway 227; north on Arkansas Highway 227 to Arkansas Highway 192; east on Arkansas Highway 192 to Arkansas Highway 7; north on Arkansas Highway 7 to Forest Service Access Road 2; east on Forest Service Access Road 2 to Forest Service Access Road 46; east on Forest Service Access Road 46 to Weyerhaeuser Road 24330; south on Weyerhaeuser Road 24330 to Weyerhaeuser Road 24000; east on Weyerhaeuser Road 24000 to Arkansas Highway 9; north on Arkansas Highway 9 to Arkansas Highway 10 at Perry.

Zone 12 – Central and south-central Arkansas. From intersection of Interstate 30 and Arkansas River; west on Interstate 30 to Arkansas Highway 51; south on Arkansas Highway 51 to Arkansas Highway 26; west on Arkansas Highway 26 to Arkansas Highway 27 at Murfreesboro; south on Arkansas Highway 27 to Arkansas Highway 355 at Mineral Springs; south on Arkansas Highway 355 to Arkansas Highway 32 at Saratoga; west on Arkansas Highway 32 to Millwood Dam at Little River; downstream on Little River to Red River; downstream on Red River to I-30; east on I-30 to Arkansas Highway 29; south on Arkansas Highway 29 to Arkansas-Louisiana state line; east on Arkansas-Louisiana state line to Bayou Bartholomew; north on Bayou Bartholomew to U.S. Highway 79B; north on U.S. Highway 79B to Arkansas River; north on Arkansas River to U.S. Interstate I-30.

Zone 13 – Northwestern part of south-central Arkansas. From intersection of Interstate 30and U.S. Highway 70; west on Interstate 30to Arkansas Highway 51; south on Arkansas Highway 51 to Arkansas Highway 26; west on 26 to U.S. Highway 278 at Center Point; west on U.S. Highway 278 to U.S. Highway 70 at Dierks; west on U.S. Highway 70 to Arkansas-Oklahoma state line; north on Arkansas-Oklahoma state line to Arkansas Highway 8; east on Arkansas Highway 8 to U.S. Highway 71; south on U.S. Highway 71 to Arkansas Highway 246; east on Arkansas Highway 246 to Arkansas Highway 84 at Athens; east on Arkansas Highway 84 to U.S. Highway 70 at Salem; east on U.S. Highway 70 to Arkansas Highway 227; north on Arkansas Highway 227 to U.S. Highway 270; east on U.S. Highway 270 to Arkansas Highway 227; north on Arkansas Highway 227 to Arkansas Highway 192; east on Arkansas 192 to Arkansas Highway 7; north on Arkansas Highway 7 to Forest Service Access Road 2; east on Forest Service Access Road 2 to Forest Service Access Road 46; east on Forest Service Access Road 46 to Weyerhaeuser Road 24330; south on Weyerhaeuser Road 24330 to Weyerhaeuser Road 24000; east on Weyerhaeuser Road 24000 to Arkansas Highway 9; north on Arkansas Highway 9 to Arkansas Highway 10 at Williams Junction; east on Arkansas Highway 10 to I-430; south on I-430 to I-30; southwest on I-30 to U.S. Highway 70.

Zone 14 – Southwestern Arkansas. From intersection of U.S. Highway 70 and Arkansas-Oklahoma state line; east on U.S. Highway 70 to U.S. Highway 278 at Dierks; east on U.S. Highway 278 to Arkansas Highway 26; east on Arkansas Highway 26 to Arkansas Highway 27; south on Arkansas Highway 27 to Arkansas Highway 355 at Mineral Springs; south on Arkansas Highway 355 to Arkansas Highway 32 at Saratoga; west on Arkansas Highway 32 to Millwood Dam at Little River; downstream on Little River to Red River; west on Red River to U.S. Highway 71; north on Highway 71 to Arkansas Highway 32 near Ashdown; west on Arkansas Highway 32 to Arkansas-Oklahoma state line; north on Arkansas-Oklahoma state line to U.S. Highway 70.

Zone 15 – Southwestern part of south-central Arkansas. From Interstate 30 and Arkansas Highway 29 at Hope; south on Arkansas Highway 29 to Arkansas-Louisiana state line; west on Arkansas-Louisiana state line to intersection of Arkansas-Louisiana-Texas state lines; north along Arkansas-Texas state line to Red River; west on Red River to intersection of Arkansas-Texas-Oklahoma state lines; north along Arkansas-Oklahoma state line to Arkansas Highway 32; east on Arkansas Highway 32 to U.S. Highway 71 near Ashdown; south on U.S. Highway 71 to Red River; east on Red River to I-30 near Fulton; east on I-30 to Arkansas Highway 29 at Hope.

Zone 16 – Southeastern Arkansas. From Arkansas River and U.S. Highway 79B; north on U.S. Highway 79B to U.S. Highway 79; north on U.S. Highway 79 to Arkansas Highway 152; east on Arkansas Highway 152 to U.S. Highway 165; south on U.S Highway 165 to the Arkansas/Mississippi River levee; south on the Arkansas/Mississippi River levee to Gould Road; west on Gould Road to Arkansas Highway 1; south on Arkansas Highway 1 to Arkansas Highway 138; west on Arkansas Highway 138 to Bayou Bartholomew; north along Bayou Bartholomew to U.S. Highway 79B; north on U.S. Highway 79B to the Arkansas River.

Zone 16A – Southern portion of southeastern Arkansas. From Mississippi River levee and Arkansas-Louisiana state line; west along Arkansas-Louisiana state line to Bayou Bartholomew; north along Bayou Bartholomew to Arkansas Highway 138; east on Arkansas Highway 138 to Arkansas Highway 1; north on Arkansas Highway 1 to Gould Road; east on Gould Road to Mississippi River levee; south on Mississippi River Levee to Arkansas-Louisiana state line.

Zone 17 – Arkansas land within Mississippi River levee. Arkansas land between Arkansas-Tennessee state line, Arkansas-Mississippi state line and Mississippi River levee and other lands described: From Mississippi River levee and Arkansas-Missouri state line, south on Mississippi River levee to Arkansas Highway 131 at Seyppel; north on Arkansas Highway 131 to Arkansas Highway 147; south on Arkansas Highway 147 to Arkansas Highway 38; west on Arkansas Highway 38 to St. Francis County Road 619; south on St. Francis County Road 619 to Crittenden County Road 47; south on Crittenden County Road 47 to Arkansas Highway 147; north on Arkansas Highway 147 to Crittenden County Road 285; south on Crittenden County Road 285 to Mississippi River levee; south on Mississippi River levee to its end near the St. Francis River; on a line due west from this point to the St. Francis River; along the St. Francis River to the Mississippi River to the southeastern boundary of St. Francis National Forest; west and south along St. Francis National Forest boundary to intersection of FDR 1901 (low road); south along FDR 1901 to Mississippi River levee in Helena-West Helena; south on Mississippi River levee to Missouri-Pacific railroad south of Snow Lake; south and west along the Missouri-Pacific railroad to intersection of north line of Section 1, T8S, R1W; west along Township line to northwestern corner of Section 4, T8S, R1W; south along western line of Section 4, T8S, R1W to north line of Section 9, T8S, R1W; south along western line of Section 9, T8S, R1W to Missouri-Pacific railroad; south and west along Missouri-Pacific railroad to White River; northwest on Arkansas-Desha county line, following White River to Arkansas Post Canal; west along Arkansas Post Canal to Arkansas River; southwest on Arkansas River to U.S. Highway 165 at Pendleton Bridge; south on U.S. Highway 165 to Arkansas-Mississippi River levee; south on Arkansas-Mississippi River levee to Arkansas-Louisiana state line.