24 C.F.R. § 578.65
(b) Applying for HPC designation. The application must be submitted at such time and in such manner as HUD may require, must use HMIS data where required to show the standards for qualifying are met, and must contain such information as HUD requires, including at a minimum:
(c) Standards for qualifying as an HPC. To qualify as an HPC, a Continuum must demonstrate through:
(1) Reliable data generated by the Continuum of Care's HMIS that it meets all of the following standards:
(iv) Serving families and youth. With respect to Continuums that served homeless families and youth defined as homeless under other federal statutes in paragraph (3) of the definition of homeless in § 576.2:
(2) Reliable data generated from sources other than the Continuum's HMIS that is provided in a narrative or other form prescribed by HUD that it meets both of the following standards: