Standard Clipper cards used for transit in the San Francisco Bay Area do not expire, and the cash value loaded onto them remains valid indefinitely. However, the physical card itself can eventually wear out or become technologically obsolete. In 2026, while the older plastic cards still function, the system has largely transitioned to Clipper on mobile devices (Apple Wallet and Google Pay). For specialized cards, such as the Clipper Access (formerly RTC) for persons with disabilities or certain "Free Muni" cards for seniors, there is an "eligibility expiration date" printed on the account. These users must renew their eligibility every few years to continue receiving discounted or free fares. If a physical card is lost or stolen, the balance can be transferred to a new card for a small $3 fee, provided the card was registered online beforehand.