D.C. Mun. Regs. r. 24-3099
When used in this chapter, the following terms and phrases shall have the meanings ascribed:
Accident - any unexpected, unintentional, unplanned, or unforeseen occurrence of a nature, or under circumstances, that could cause personal injury or property damage, regardless of whether injury or damage does result.
Adequate - meeting the requirements essential to reasonable safety.
Deep sea or hart-hat diving - diving operations where the air is supplied from the surface.
Disabling injury - an injury that disables a person for the performance of his or her regular duties, or the normal duties of a regularly established job, beyond the date or shift of the injury; or an injury that results in permanent disability.
Employee - any person rendering service to an employer for compensation.
Equipment - includes machinery, devices, tools, derricks, hoists, scaffolds, platforms, runways, ladders, and all similar facilities, safeguards, and protective construction used in connection with diving operations.
Recompression chamber - a compartment designed to recompress a diver so that the diver can then undergo decompression at a controlled rate.
Scuba diving - diving operations employing self-contained underwater breathing apparatus.
D.C. Mun. Regs. r. 24-3099