Owners of commercial harbor craft—like tugboats, ferries, and private charter boats—are expressing concern over California’s new regulation that requires commercial vessels to have cleaner engines. The regulation, which takes effect in 2023, sets stricter requirements for the types of engines—newer, less-polluting engines—allowed near California’s coast. The regulation will be rolled out in phases, whereby in 2025, commercial harbor engines fully transition to zero-emission. Gisele Anderson, co-president of Captain Dave’s Dana Point Dolphin & Whale Watching Safari, told The Epoch Times the new regulations that force companies to replace their vessels’ engines, if not done so already, is a “deathblow.” “It’s the kind of thing that can be really detrimental,” Anderson said, adding that replacing a boat’s engine puts the boat out of service for six weeks minimum, which would affect 10 percent of her company’s profits. “We want to comply, and we’re all for air quality. We just would appreciate a …