VA Handbook 6500.6 - US Department of Veterans Affairs: Mar 12, 2010 . Appendix B. va form 21 4142 2012: This is not required by VA but may be required byVA Handbook 6500.6, Contract Security. APPENDIX C. VA INFORMATION AND INFORMATION SYSTEM SECURITY/PRIVACY LANGUAGE. FOR INCLUSION INTO CONTRACTS, ATTACHMENT VA HANDBOOK 6500.6 APPENDIX C.pdf for Contract Opportunity 36C24822Q0018 ; Federal Agency. Veterans Integrated Service Network 8 (VA - VHA) ; Federal A contractor/subcontrator shall request logical (technical) or physical access to VA information and VA information systems for their employees, subcontractors,