In a final rule published on January 19, 2017, federal departments and agencies made revisions to the Federal Policy for the Protection of Human Subjects (hereafter the “2018 Requirements”). The Consumer Product Safety Commission (CPSC) adopted the same regulatory changes in a separate final rule published on September 18, 2017. The 2018 Requirements were scheduled to become effective on January 19, 2018, with a general compliance date of January 19, 2018 (with the exception of the revisions to the cooperative research provision). The departments and agencies listed in this document have also published an interim final rule delaying the effective date and general compliance date for the 2018 Requirements for six months, to cover the time period of January 19, 2018 until July 19, 2018. As per the interim final rule, the effective date of the 2018 Requirements is now July 19, 2018. The departments and agencies listed in this document propose delaying the general compliance date for the 2018 Requirements for an additional six months, for the time period of July 19, 2018 until January 21, 2019. This proposed rule is intended to provide additional time to regulated entities for the preparations necessary to implement the 2018 Requirements. This proposed rule, if finalized, would require regulated entities to continue to comply with the requirements of the current Federal Policy for the Protection of Human Subjects (hereafter the “pre-2018 Requirements”) until January 21, 2019. This proposal also takes comment on whether to permit institutions to implement, for certain research studies, the following provisions in the 2018 Requirements during the period from July 19, 2018, until January 21, 2019, that the general compliance date is delayed. Those three provisions, intended to reduce burdens on regulated entities, are the 2018 Requirements’ definition of “research,” which deems certain activities not to be research, the allowance for no annual continuing review of certain categories of research, and the elimination of the requirement that institutional review boards (IRBs) review grant applications related to the research. The way that this option is proposed, regulated entities would be required to comply with all pre- 2018 Requirements during the period that the general compliance date is delayed, except for provisions substituted by the three burden-reducing provisions of the 2018 Requirements. As described in section III, below, this flexibility is proposed only for studies for which an institution makes a choice to transition to comply with the 2018 Requirements, beginning on July 19, 2018. In order to clearly describe this proposed flexibility, including how it would impact institutions choosing to transition research to comply with the 2018 Requirements, this document proposes a redrafted transition provision.