Section 11.66. Excavating operations

Employment of minors under 18 years of age in any of the following occupations involving excavating operations is prohibited except for apprentices, student learners and graduates of an approved vocational, technical or industrial education curriculum which prepared them for employment in the specific occupation:

(1) Excavating, working in or backfilling trenches except for manually excavating or manually backfilling trenches that do not exceed 4 feet in depth at any point or working in trenches that do not exceed 4 feet in depth at any point.

(2) Excavating for buildings or other structures or working in such excavations, except for manually excavating to a depth not exceeding 4 feet below any ground surface adjoining the excavation, working in an excavation not exceeding such depth, or working in an excavation where the side walls are shored or sloped to the angle of repose.

(3) Working within tunnels prior to the completion of all driving and shoring operations.

(4) Working within shafts prior to the completion of all sinking and shoring operations.