(a) Lowering age at which minor may be excluded from jurisdiction of Family Court Section 16–2301, District of Columbia Official Code, is amended— (1) in paragraph (3), by striking sixteen years of age and inserting fourteen years of age; and (2) in paragraph (3) in the matter following subparagraph (C), by striking the age of sixteen and inserting the age of fourteen. (b) Lowering age at which minor may be transferred to criminal proceeding Section 16–2307(a), District of Columbia Official Code, is amended— (1) in paragraph (1), by striking fifteen and inserting fourteen; and (2) in paragraph (2), by striking sixteen and inserting fourteen; and (3) in paragraph (3), by striking eighteen and inserting fourteen. (c) Applicability This Act, and the amendments made by this Act, shall apply with respect to criminal offenses committed on and after the date of the enactment of this Act.