shall establish a research and development program to improve the efficacy of personal protective equipment to reduce blast pressure or protect against brain injury from exposure to blast pressure waves. (2) Report required Not later than one year after the date of the enactment of this Act, the Under Secretary of Defense for Research and Engineering shall submit to the Committees on Armed Services of the Senate and the House of Representatives a report on the efficacy of existing personal protective equipment to protect against blast pressure, and recommendations for follow-on research into technology advancements that could further improve protection from blast pressure. (3) Elements The report required by paragraph (2) shall include the following: (A) An assessment of existing helmet designs, including commercially available helmets, to determine their efficacy against blasts of various sizes and locations. (B) A determination of whether certain configurations and materials better protect against specific types of exposure, including from explosions and heavy weaponry. (C) A review of existing personal protective equipment requirements, including helmets, to determine the adequacy of requirements to protect against blast overpressure. (D) An assessment of the feasibility of modifications to existing personal protective equipment, including improved helmet design. (E) An assessment of the trade-offs between improved blast pressure protection and other factors, including weight, field of vision, cost, and other factors as appropriate. (F) Recommendations for modified or additional requirements for personal protective equipment, including helmets, to protect against blast overpressure. (G) Recommendations for additional research into personal protective equipment advancements that show promise, including new materials, technologies, and passive and active off-board measures.