Blast Resistant Standards

GSA-TS01-2003 is a public document
Updated January 7, 2003

GSA/ISC Level C: 4psi/28psi*msec
Majority of buildings subject to standard
Courthouses, federal buildings

GSA/ISC Level D: 10psi/89psi*msec
Higher profile buildings 

DoD Minimum Antiterrorism Standards for Buildings
UFC 4-010-10 Updated January 2007
UFC4-010-01