; (4) recommends actions to address such gaps; (5) identifies best practices to engage underserved communities and promote workforce diversity; and (6) identifies any additional statutory authority that is needed by the Department to implement such actions. (b) Submission to Congress Not later than 2 years after the date of enactment of this Act, the Secretary of Health and Human Services shall— (1) submit to the Committee on Health, Education, Labor, and Pensions of the Senate, and to the Committees on Energy and Commerce and Education and the Workforce of the House of Representatives, the plan developed under subsection (a); and (2) post such plan on the website of the Department of Health and Human Services. 5. Reports and studies (a) Environmental health workforce development report Not later than 2 years after the date of enactment of this Act, the Comptroller General of the United States shall— (1) examine and identify best practices implemented in States that are related to training and credentialing requirements for environmental health workers; and (2) submit to the Committee on Health, Education, Labor, and Pensions of the Senate and the Committee on Energy and Commerce of the House of Representatives a report that includes and, where appropriate, evaluates— (A) the types of environmental health workers employed at State and local health departments and independent environmental health agencies; (B) the educational backgrounds of such workers; (C) whether such workers are credentialed or registered, and the type of credential or registration as applicable to each worker; (D) the impact of State requirements for continuing education for such workers; (E) the impact of having State and local health departments and independent environmental health agencies track continuing education units for such workers