; and (2) a report or briefing detailing the rationale for not implementing any such recommendations that may otherwise yield significant cost savings to the Department if implemented. 208. Business volume Section 402(c)(2)(E) of the Omnibus Diplomatic Security and Antiterrorism Act of 1986 ( 22 U.S.C. 4852(c)(2)(E) ) is amended by striking in 3 years and inserting cumulatively over 3 years . 209. Embassy security requests and deficiencies The Secretary shall provide to the appropriate congressional committees upon request information on security deficiencies at United States diplomatic posts, including relating to the following: (1) Requests made over the previous year by United States diplomatic posts for security upgrades. (2) Significant security deficiencies at United States diplomatic posts that are not operating out of a new embassy compound or new consulate compound. 210. Overseas security briefings Not later than one year after the date of the enactment of this Act, the Secretary shall revise the Foreign Affairs Manual to stipulate that information on the current threat environment shall be provided to all United States Government employees under chief of mission authority traveling to a foreign country on official business. To the extent practicable, such material shall be provided to such employees prior to their arrival at a United States diplomatic post or as soon as possible thereafter. 211. Contracting methods in capital construction (a) Delivery Unless the Secretary notifies the appropriate congressional committees that the use of the design-build project delivery method would not be appropriate, the Secretary shall make use of such method at United States diplomatic posts that have not yet received design or capital construction contracts as of the date of the enactment of this Act. (b) Notification Before executing a contract for a delivery method other than design-build in accordance with subsection (a), the Secretary shall notify the appropriate congressional committees in writing of the