In another ambitious move toward California’s zero-emissions goals, state air regulators voted Thursday to approve a plan that would ban the sale of commercial and residential natural-gas heaters by 2030 — a decision that means an alternative heating technology powered by electricity might soon become far more widespread in the state.

The unanimous decision by the California Air Resources Board is part of a larger state plan to reduce ozone emissions from a variety of industries, including transportation and consumer products in addition to commercial and residential building.