Amends section 1701 of the Omnibus Crime Control and Safe Streets Act (34 U.S.C. 10381) by inserting a new paragraph (23) in the list of permitted uses of grant amounts to authorize use of funds to provide for implementation of a standardized training program for school resource officers (requirements determined by the Governor and a State law enforcement agency) for local educational agencies in any State that does not have such a program; and by redesignating existing paragraphs (23) and (24) as (24) and (25), and updating a cross-reference in the redesignated paragraph (24) (striking "(22)" and inserting "(23)").

Modifies the list in 20 U.S.C. 7114(b)(3)(B) by removing terminal 'and' language from clauses (iii) and (iv) and adding new clauses (v) and (vi) addressing de-escalation training and a school safety specialist role.

Adds a new definition (9) 'De-escalation training' to section 4102.

Adds paragraph (4) to require States receiving Federal funds under any title of the Act to provide specified confidential mental health services for expelled students and their parents when parents lack the financial means.

Adds a prohibition on disclosure of return information relating to the credit under section 25G to any officer or employee of a Federal agency (new paragraph (9) in subsection (i)) and inserts a new subsection (q) prohibiting the compilation or disclosure of any non-anonymized list of return information relating to that credit.

Adds a new section 25G to the Internal Revenue Code (chapter 1, subpart A of part IV) creating a 'Secure firearm credit' provision with eligibility, limitations, substantiation requirements, and a termination date.