; (4) the provision of language access services, including translation services, interpretation, or other such services for individuals with limited English speaking proficiency or individuals with disabilities; and (5) evaluation and improvement, as necessary, of the effectiveness of such services provided by public or nonprofit entities. (c) Best practices The Center shall periodically issue best practices for use by organizations seeking to provide mental health services or substance use disorder prevention, treatment, or recovery services, including best practices for the following special populations: (1) Incarcerated individuals. (2) Children. (3) Pregnant women. (4) Underserved populations. (5) Communities of color. (6) Health care providers and essential workers. (d) Emergency period In this section, the term emergency period has the meaning given such term in section 1135(g)(1)(A) of the Social Security Act. (e) Authorization of appropriations There is authorized to be appropriated to carry out this section $20,000,000 for each of fiscal years 2020 and 2021. .