Budget issues are affecting transportation plans. The SFMTA board has voted to seek a state exemption to purchase diesel-hybrid buses. This decision was made because the preferred option, electric buses, is too expensive.

The exemption is needed due to the cost difference between the two types of buses. Diesel-hybrid buses are less expensive than electric ones, making them a more feasible option given current budget constraints.

Further details about this decision and its implications are available from the source. The SFMTA board's vote to pursue this exemption is a response to financial limitations, leading to a choice between different types of buses.