Contractor Orientation to Safety 是什么? Contractor Orientation to Safety (COS): Site orientation for contractors designed to meet the PSM/RMP requirements. Typically, this course is held weekly in Building 20, Training Room. Contact the SH&E Department for details. 有人说是“安全取向”,我觉得这个不好理解,应该是“安全教育”。 [ ]查看更多7个回答 . 4人已关注