MEMORANDUM **

Hein and Ellen Hettinga (“the Hettingas”) d/b/a Sarah Farms appeal the adverse grant of summary judgment in their action challenging the Secretary of the U.S. Department of Agriculture’s (“USDA”) interpretation of the 2006 amended Arizona-Las Vegas Milk Marketing Order (“Amended Order”) as applied to them and seeking refund of $324,211.60 in assessments paid for the month of April 2006. We affirm.

The USDA’s interpretation of its own regulation is entitled to substantial deference and must be given controlling weight “unless an ‘alternative reading is compelled by the regulation’s plain language or by other indications of the agency’s intent at the time of the regulation’s promulgation.’” Thomas Jefferson Univ. v. Shalala, 512 U.S. 504, 512, 114 S.Ct. 2381, 129 L.Ed.2d 405 (1994) (quoting Gardebring v. Jenkins, 485 U.S. 415, 430, 108 S.Ct. 1306, 99 L.Ed.2d 515 (1988)); see Auer v. Robbins, 519 U.S. 452, 461, 117 S.Ct. 905, 137 L.Ed.2d 79 (1997); Miller v. Cal. Speedway Corp., 536 F.3d 1020, 1028 (9th Cir. 2008).

Here, the agency’s interpretation of the Amended Order is contradicted by neither its plain language nor other evidence of regulatory intent. The Hettingas did not lose their producer-handler exemption status in April 2006 due to failure to meet one of the five “designation requirements” or fulfillment of one of the three “cancellation conditions,” and therefore the Amended Order’s new cancellation provision, providing for a one-month enforcement grace period, does not, on its face, apply. See 7 C.F.R. § 1131.10(a), (c). Rather, USDA claims the Hettingas were immediately and automatically disqualified from producer-handler exemption status for the month of April 2006 because they exceeded the monthly three-million pound sales cap. See id. § 1131.10 pmbl. Reading the regulation as a whole, we cannot say the agen *734 cy’s interpretation of its own regulation is unreasonable. See Or. Paralyzed Veterans of Am. v. Regal Cinemas, Inc., 339 F.3d 1126, 1131 (9th Cir. 2003).

AFFIRMED.