John, attached are the additional documents provided by DOD.
You can access the Federal Wage System Operating Manual at http://www.opm.gov/oca/wage/appfund/index.asp. Subchapter S5 contains OPM's detailed instructions on conducting FWS wage surveys, analyzing FWS data, and establishing FWS paylines and wage schedules. Appendix G explains how to compute a wage trend line.
We have one question for you. Can you let us know if this is the census OMB was referring to? If not, can you please provide the link? http://www.census.gov/econ/census07/index.html
Thank you!