; and (2) the effectiveness of the guidance issued pursuant to section 4. (b) Updated guidance Not later than the last day of the 90-day period beginning on the date on which the report is submitted pursuant to subsection (a), the Secretary of Homeland Security and the Secretary of State shall jointly update the guidance required under section 4 to the extent any shortcomings are identified in the report. 6. Rulemaking Not later than 90 days after the date of the enactment of this Act, the Secretary shall promulgate regulations to implement this Act. 7. Effective date; applicability (a) Effective date This Act shall take effect 90 days after the date of the enactment of this Act. (b) Applicability The requirements under this Act shall apply to all naturalization examinations involving eligible veterans with a pending naturalization application as of the date of the enactment of this Act or who submit a naturalization application after such date of enactment, regardless of the date on which the veterans were discharged from the military or exited the United States.