Posted in Aviation, Government & Military CAOHC stands for Council for Accreditation in Occupational Hearing Conservation CAOHC stands for China Aviation Oil Holding Company CAOHC Share Pinterest Tweet Whatsapp Post navigation CAODSDCDA Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.