Title 7
SECTION 29.3552
29.3552 Subgrade.
§ 29.3552 Subgrade.Any grade modified by a special factor symbol.
[30 FR 9207, July 23, 1965. Redesignated at 49 FR 16759, Apr. 20, 1984]Any grade modified by a special factor symbol.
[30 FR 9207, July 23, 1965. Redesignated at 49 FR 16759, Apr. 20, 1984]