per diem in lieu of subsistence, at rates authorized for employees of agencies under subchapter I of chapter 57 of title 5, United States Code, while away from the home or regular places of business of the member in the performance of services for the Commission. (l) Duration Section 1013 of title 5, United States Code, shall not apply to the Commission. 4. Duties of the Commission (a) Recommended best practices (1) Initial recommendations (A) In general Not later than 18 months after the date on which a majority of the members of the Commission required to be appointed under section 3(c)(1)(C) have been so appointed, the Commission shall develop and submit to the Attorney General recommended best practices that providers of interactive computer services may choose to engage in to prevent, reduce, and respond to the online sexual exploitation of children, including the enticement, sex trafficking, and sexual abuse of children and the proliferation of online child sexual abuse material. (B) Requirements (i) Alternative best practices The best practices required to be developed and submitted under subparagraph (A) shall include alternatives that take into consideration— (I) the size, type of product, and business model of a provider of an interactive computer service