This final rule amends the roof truss testing procedures in the Federal Manufactured Home Construction and Safety Standards by adopting certain recommendations made by the Manufactured Home Consensus Committee (MHCC), as modified by HUD. Pursuant to the National Manufactured Housing Construction and Safety Standards Act of 1974, HUD published a recommendation submitted by MHCC to revise the existing roof truss testing procedures in 2003. In response to public comments, HUD returned the proposal to MHCC for further evaluation. After further consideration, MHCC submitted to HUD an amended version of its original proposal on roof truss testing. HUD was in agreement with the majority of MHCC's revised recommendations on roof truss testing which were published as a proposed rule on June 16, 2010. Many of MHCC's recommendations are included in this final rule. HUD identifies MHCC's proposals that were not accepted, or that were modified in light of public comments received or upon further evaluation, and provides its reasons for not accepting or for modifying these proposed revisions.