performing labor in a coal or other mine under this Act, including any mandatory health or safety standard, rule, order, or regulation promulgated pursuant to this Act, unless such regulation, guidance, opinion, ruling, standard, order, adjudicative decision, or other interpretation is plainly erroneous or inconsistent with this Act, including any mandatory health or safety standard, rule, order, or regulation promulgated pursuant to this Act. . (e) Migrant and Seasonal Agricultural Worker Protection Act Part B of title V of the Migrant and Seasonal Agricultural Worker Protection Act ( 29 U.S.C. 1861 et seq.) is amended by adding at the end the following: 514. General standards for applying and interpreting workers' rights (a) Interpretation of protections and exemptions (1) Protections All protections afforded under this Act, including any regulation under this Act, to migrant agricultural workers or seasonal agricultural workers shall be interpreted expansively in favor of the worker or individual claiming classification as such a worker. (2) Exemptions and exclusion (A) In general All exemptions and exclusions under this Act, including any regulation under this Act, shall be interpreted narrowly against an agricultural employer, agricultural association, or farm labor contractor employing a migrant agricultural worker or seasonal agricultural worker, or person alleged to be such an employer, association, or contractor, and limited in application to those persons or circumstances plainly and unmistakably within the language and spirit of the exemption or exclusion. (B) Clear and convincing evidence Any person asserting the applicability of an exemption or exclusion under this Act, including a regulation under this Act, shall prove such applicability by clear and convincing evidence. (b) No-Less-Protection rule (1) In general The Secretary shall not take any action to reduce a protection afforded under this Act, including a regulation under this Act, to a migrant agricultural worker or a seasonal agricultural