; (3) by redesignating paragraphs (4) and (5) as paragraphs (6) and (7), respectively; and (4) by inserting after paragraph (3) the following: (4) mechanical harvesting of vegetative cover, without any restriction on the use of the vegetative cover harvested (except harvesting the vegetative cover for seed), subject to the conditions that— (A) the harvesting may not occur more frequently than once every 3 years; and (B) the annual rental rate for the acres harvested during a year shall be reduced by 25 percent; (5) grazing during the applicable normal grazing period determined under subclause (I) of section 1501(c)(3)(D)(i) of the Agricultural Act of 2014 ( 7 U.S.C. 9081(c)(3)(D)(i) ), without any restriction on grazing during the primary nesting period, subject to the conditions that— (A) the grazing shall be at 25 percent of the normal carrying capacity determined under that subclause; and (B) the annual rental rate for the acres harvested during a year shall be reduced by 25 percent; . (e) Wellhead protection Section 1234(g) of the Food Security Act of 1985 ( 16 U.S.C. 3834(g) ) is amended— (1) in paragraph (1), by striking The total and inserting Except as provided in paragraphs (2) and (3), the total ; and (2) by adding at the end the following: (3) Wellhead protection Paragraph (1) shall not apply to rental payments received by a rural water district or association for land that is enrolled under this subchapter for the purpose of protecting a wellhead. . (f) Transition option for certain farmers or ranchers Section 1235 of the Food Security Act of 1985 ( 16 U.S.C. 3835 ) is amended— (1) in subsection (c)(1)(B)(iii), by striking a retired or retiring owner or operator to a beginning farmer or rancher or socially disadvantaged farmer or rancher and inserting an eligible owner or operator to a covered farmer or rancher (as those terms are defined in subsection (f)(1)) ; and (2) in subsection (f)— (A) by redesignating paragraphs (1) and (2) as paragraphs (2) and (3), respectively