OSHA’s standards for first aid training in general industry, 29 CFR 1910.151(b) and in the construction industry, 29 CFR 1926.50(c) provide that it is the responsibility of an employer that first aid treatment is promptly available to injured employees. It can be done either through trained first aid worker at the jobsite or by making certain that services related to emergency treatment are within immediate vicinity of the jobsite.