; and (B) provide the witness an opportunity to attend and testify voluntarily. (5) Whenever requiring by subpoena under paragraph (1) the attendance and testimony of a witness, the Inspector General shall, to the greatest extent practicable, travel to residence of the witness, the principal place of business of the witness, or other similar location that is in proximity to the residence of the witness. (6) (A) Along with each semiannual report submitted by the Inspector General pursuant to section 5(b) of the Inspector General Act of 1978 ( 5 U.S.C. App. 5(b) ), the Inspector General shall include a report on the exercise of the authority provided by paragraph (1). (B) Each report submitted under subparagraph (A) shall include, for the most recently completed six-month period, the following: (i) The number of testimonial subpoenas issued and the number of individuals interviewed pursuant to such subpoenas. (ii) The number of proposed testimonial subpoenas with respect to which the Attorney General objected under paragraph (3)(B). (iii) A discussion of any challenges or concerns that the Inspector General has encountered exercising the authority provided by paragraph (1). (iv) Such other matters as the Inspector General considers appropriate. . (b) Effective date (1) In general Except as provided in paragraph (2), subsection (c) of section 312 of title 38, United States Code, as added by subsection (a), shall take effect on the date of the enactment of this Act. (2) Semiannual report Paragraph (4) of subsection (c) of such section, as so added, shall take effect on the date that is seven months after the first day of the first fiscal year beginning after the date of the enactment of this Act.