Thursday, March 11, 2021Advisory Group Memorandum #42: Supplemental Materials to the First Draft of Report #70 File SizeFile SizeAttachment(s): Supplemental Materials to the First Draft of Report #70 and Appendices A-D - 9.3 MB (pdf) Supplemental Materials to the First Draft of Report #70 and Appendices E-K - 9.4 MB (pdf)