An enclosed cab, according to EPA regulation, has a nonporous barrier which totally surrounds the occupant(s) of the cab and prevents contact with pesticides outside of the cab. Enclosed cabs must meet Department of Labor and Industry requirements (L & I: 1-800-547-8367). Enclosed cabs in good repair offer protection from dermal exposure to pesticides. The EPA has implemented an enclosed cab policy, which allows an applicator to wear less personal protective equipment (PPE) than may be required for outside or open cab applications. A respirator must still be worn when and as specified by the label. Note that applicators shall wear PPE if it is necessary to exit the cab and contact pesticide-treated surfaces in the treated area.