Those parts of Derbyshire, Nottinghamshire, Leicestershire, Lincolnshire, Rutland, Northamptonshire and Staffordshire bounded by:

On the North the A6 from the A5270 at Blackwell, east of Buxton, via Bakewell to A615 at Matlock. Straight line to A614/A616 at Ollerton Island. The A6075 via Tuxford and the A57 to the River Trent at Dunham Bridge. Eastwards to the junction of the A57/B1241 in Saxilby. A straight line from Saxilby to Sutton on Sea, junction A52/A1111. On the South the Lincolnshire boundary with Norfolk and Cambridgeshire to A15 at Deeping Gate, the A16, A6121 to A1 at Stamford, the A6121 , A47, A6003, to Uppingham. B664 to the A6 at Great Bowden, A4304 via Market Harborough and junction 20 (M1), to the A426 at Lutterworth. On the West the A426 to the crossing of the M1, the M1 to Junction 22(M1) at Markfield. The A511 (including Coalville) to Burton-On-Trent to the railway line at Tutbury. The railway line to Uttoxeter town centre and the A522 to junction with the A50. The A522 to Cheadle, the A521, A524 to Froghall, B5053 to A515, A515/A5270 to A6 at Blackwell.