The Department of Labor (DOL), Office of the Senior Procurement Executive (OSPE), Office of Acquisition Services (OAS), on behalf of the Mine Safety and Health Administration (MSHA) is, has a requirem... The Department of Labor (DOL), Office of the Senior Procurement Executive (OSPE), Office of Acquisition Services (OAS), on behalf of the Mine Safety and Health Administration (MSHA) is, has a requirement for a contractor to provide components and consumables which are compatible with the Draeger BG closed-circuit breathing apparatus and approved for mine rescue use in irrespirable atmospheres, as defined in the attached Specifications.