SHERAZ SADIQ:

Farmers like Murphy are now required to register with the county so they can get permits to legally grow medical cannabis, just as they would for other agricultural crops.

Size limits apply, depending on how the crop is grown, and whether it's new or existing cultivation.

STEVE LAZAR, Planning and Building Dept, Humboldt County: The limit for new cultivation is 10,000 square feet, or about a quarter of an acre. Existing operations, we have allowed all the way up to one acre in size, if they can meet requirements.