definiens: or as such materials are defined in Title 26, California Code of Regulations § 17 - 30100, and/or any other materials possessing the charact eristics of the materials so defined, which approval Landlord m ay withhold in its sole and absolute discretion ; pr ovided, that such approval shall not be required for any ra dioactive materials for which Tenant has secured pr ior written approval of the Nuclear Regulatory Commission and d elivered to Landlord a copy of such approval . Tenan t, in connection with any such authorized receipt, storag e, possession, use, transfer or disposal of radioac tive materials or radiation, shall : ( A ) Comply with all federal, state and local laws, rules, regulations, orders, licenses and permits issued to or applicable to Tenant with respect to its business operations on the Premises and in the Center ; ( B ) Maintain, to such extent and for such periods a s may be required by applicable law, and permit Landlord and its representatives to inspect during normal business hours at any time a nd from time to time upon reasonable notice to Tenant, a fi st of all radioactive materials or radiation receiv ed, stored, possessed, used, transferred or disposed of by Tena nt or in connection with the operation of Tenant ’s business on the Premises and in the Center from time to time, t o the extent not already disclosed through delivery of a copy of a Nuclear Regulatory Commission approval with re spect thereto as contemplated above : and ( C ) Maintain, to such extent and for such periods a s may be required by applicable law, and permit Landlord or its representatives to inspect during normal business hours at any time an d from time to time upon reasonable notice to Tenant, all licenses, registration materials, inspection report s, governmental orders and permits in connection with the receipt, storage, possession, use, transfer or disposal of radioactive materials or radiation by Tenant or in connection with the operation of Tenant ’s business on the Premises and in the Center from time to time