The NASA Technical Standards System is a key element of the NASA Technical Standards Program (NTSP), sponsored by the Office of the NASA Chief Engineer. It provides access to technical standards from specifically contracted Standards Developing Organizations (SDOs) at no direct cost to the user via electronic subscription delivery and on a pay-per-document approval basis. While the service is at no cost to the user, however, justification of need and program or project supported for the pay-per-document is carefully considered before the request is approved by the NTSP Manager or designee, as this is an additional cost to the Program. The following are examples of document exclusions: Hard copy, CD, DVD, etc., when electronic copies are provided, books, periodicals, training materials, newsletters, magazines, journals, conference proceedings, drafts, handbooks and guides not related to specific standards, etc. Please use the Submit Feedback if you have any questions regarding delivery of standardization documents.