Nevada Revised Statutes Title 53. Labor and Industrial Relations § 618.991. Trainer must display trainer card;  only trainers may provide courses

(a) “Trainer” means a person who is currently authorized by the Occupational Safety and Health Administration of the United States Department of Labor as a trainer, including, without limitation, a person who has completed OSHA 501, the Trainer Course in OSHA Standards for General Industry.

(b) “Trainer card” means the card issued upon completion of OSHA 501, the Trainer Course in OSHA Standards for General Industry, which reflects the authorization of the holder by the Occupational Safety and Health Administration of the United States Department of Labor to provide OSHA-10 courses and OSHA-30 courses.