Paper copies will not be provided. Procurement is restricted to Chemring Energetic Devices, Inc. and Rockwell Collins per the source control drawing. A limited drawing package is available. Drawings a... Paper copies will not be provided. Procurement is restricted to Chemring Energetic Devices, Inc. and Rockwell Collins per the source control drawing. A limited drawing package is available. Drawings are NOT available on CD. Items are explosive. A Safety Survey may be required. See solicitation for explosive weight and class.