(a) the time frame and procedures for negotiations and the concluding of access agreements; (b) rate methodologies; (c) protection of intellectual property; (d) protection of commercial information; (e) provisioning of facilities; and (f) sharing of technical information. (4) The access code may provide for different terms and conditions for the different network facilities and network services listed in the access list. 154. Registration of the access code. The Commission shall not register an access code unless it is satisfied that the access code is consistent with the standard access obligations. 155. Industry access undertakings. (1) A licensee may provide an access undertaking, in accordance with section 110. (2) An access undertaking may specify more than one set of terms and conditions for access to a particular network facility or network service listed in the access list. 156. Registration of an undertaking. The Commission shall not register an undertaking, in accordance with its general powers in section 111, unless it is satisfied that the undertaking is consistent with the standard access obligations. PART VII TECHNICAL REGULATION Chapter 1 - Spectrum Assignment 157. Prohibition on using spectrum without assignment. (1) Subject to such exemptions as may be determined by the Minister by order published in the Gazette, no person shall intentionally use any part of the spectrum to provide a network service unless — (a) the person holds a spectrum assignment issued under this Part; (b) the person holds an apparatus assignment issued under this Part; or (c) the use of the spectrum is subject to a class assignment issued by the Commission under this Part.