In this Part of this Schedule—

• “address” means—

  1. a

     in the case of a registered company, the address of its registered office,

  2. b

     in the case of a person (other than a registered company) carrying on a business, the address of the person's principal place of business in the United Kingdom, and

  3. c

     in any other case, the person's last known address;

• “the Commissioner” means the Investigatory Powers Commissioner;

• “enforcement obligation” has the meaning given by paragraph 3(2);

• “monetary penalty notice” means a monetary penalty notice under section 7;

• “notice” means notice in writing;

• “notice of intent” has the meaning given by paragraph 4(3);

• “registered company” means a company registered under the enactments relating to companies for the time being in force in the United Kingdom.