GSA has established government-wide BPAs for independent risk analysis services, including verification and validation of in-house risk assessments. For information on ordering procedures, see the attachment to OMB memorandum (M-08-10), Use of Commercial Independent Risk Analysis Services Blanket Purchase Agreements (BPA), dated February 4, 2008, available on the OMB Web site. HHS policy is for contracting activities to use the GSA BPA sources to the maximum practicable extent.