to not more than a 20-percent reduction of the funds that would otherwise be allocated for that fiscal year to the State or unit of local government under subpart 1 of part E of title I of the Omnibus Crime Control and Safe Streets Act of 1968 ( 42 U.S.C. 3750 et seq.), whether characterized as the Edward Byrne Memorial State and Local Law Enforcement Assistance Programs, the Local Government Law Enforcement Block Grants Program, the Edward Byrne Memorial Justice Assistance Grant Program, or otherwise. (e) Reallocation Amounts not allocated under a program referred to in subsection (b)(2) to a State or unit of local government for failure to fully comply with subsection (a) shall be reallocated under that program to States and units of local government that have not failed to comply with such subsection. (f) Evidence-Based practices For purposes of subsection (a)(4), the Attorney General shall maintain a list of evidence-based practices it determines is successful in enhancing de-escalation skills of law enforcement officers. The Attorney General shall regularly update this list as needed and shall publish the list to the public on a yearly basis. 3. Data collection The Attorney General shall collect data on efforts undertaken by Federal fund recipients to enhance de-escalation training for law enforcement officers. 4. Affirmative duty to use de-escalation tactics when available (a) In general In the case of a State or unit of local government that received a grant award under subpart 1 of part E of title I of the Omnibus Crime Control and Safe Streets Act of 1968 ( 42 U.S.C. 3750 et seq.), if that State or unit of local government fails by the end of a fiscal year to enact or have in effect laws, policies, or procedures that sets forth an affirmative duty on a law enforcement officer of that State or unit of local government, whenever possible, to employ de-escalation techniques in which the officer has received training required under section 2(a), the Attorney General shall reduce the amount that would