Under which regulation may an officer not enter agricultural premises without the owner's consent?

The regulation that specifies an officer may not enter agricultural premises without the owner's consent is INA § 287(e). This provision recognizes the importance of respecting the privacy and property rights of agricultural operations, acknowledging that these premises are often sensitive in nature, and thus it limits enforcement actions without proper consent from the owner.

Other options address different contexts or enforcement actions but do not specifically mention restrictions pertaining to agricultural premises. For instance, INA § 287(a)(3) pertains to the authority of immigration officers but does not impose similar restrictions regarding agricultural properties. Similarly, 19 USC § 1581 and 19 USC § 1595(b) relate to customs and trade enforcement, which do not involve provisions for entering agricultural premises specifically without consent. Therefore, INA § 287(e) is the relevant regulation that establishes the requirement for obtaining consent before entering agricultural lands.