這是加州realtor association的標準合同
. MAINTENANCE USE AND REPORTING: A. Tenant shall properly use, operate and safeguard Premises, including if applicable, any landscaping, furniture, furnishings and appliances, and all mechanical, electrical, gas and plumbing fixtures, carbon monoxide detector(s) and smoke alarms, and keep them and the Premises clean, sanitary and well ventilated. Tenant shall be responsible for checking and maintaining all carbon monoxide detectors and any additional phone lines beyond the one line and jack that Landlord shall provide and maintain. Tenant shall replace any burned out or malfunctioning light bulbs. Tenant shall immediately notify Landlord, in writing, of any problem, malfunction or damage with any item including carbon monoxide detector(s) and smoke alarms on the property. Tenant shall be charged for all repairs or replacements caused by Tenant, pets, guests or licensees of Tenant, excluding ordinary wear and tear. Tenant shall be charged for all damage to Premises as a result of failure to report a problem in a timely manner. Tenant shall be charged for repair of drain blockages or stoppages, unless caused by defective plumbing parts or tree roots invading sewer lines.