Hazardous Materials. With the exception of office and cleaning supplies typically used for the permitted uses of the Premises, Tenant shall not store any Hazardous Materials as identified in 22 California Code of Regulations Sections 66261.1 et seq., as they may be amended from time to time at the Premises or Common Areas thereto.

Hazardous Materials. Tenant shall not bring or permit to be brought or kept in or on the Premises or elsewhere in the Building (other than standard cleaning and office supplies stored, used, and disposed of in accordance with all Laws) any inflammable, combustible, or explosive fluid, material, chemical, or substance including, without limitation, any hazardous substances, materials, or wastes (collectively, “Hazardous Materials”) as defined under applicable federal, state, or local law, including without limitation under the Federal Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), 42 USC §§ 9601, et seq., the Federal Solid Waste Disposal Act as amended by Resource Conservation and Recovery Act of 1976 (RCRA), 42 USC §§ 6901, et seq., or the Massachusetts Oil and Hazardous Material Release Prevention Act, M.G.L. c. 21E, or under any regulation of any governmental authority regulating environmental or health matters, as any of the foregoing may be amended from time to time (collectively, “Environmental Laws”).