The preamble of FMCSA's 2011 final HOS rule ( 76 FR 81134 ) stated that FMCSA is committed to an analysis of the relative crash risk by driving hour, the impact of the changes in the HOS provisions, and examination of differences in crash risk after restarts that include 2 nights and those that do not. The HOS final rule also said that FMCSA would work with the OMB on the methodologies of these new statistical data collections. FMCSA needs additional data to answer important
