Typically the flow restriction is at the aerator. Unscrew the aerator from the end of the spout, replace with a higher-flow aerator. I’ve done it to the two kitchen sink faucets I can see across the room from where I’m sitting.
I initially did a 4.75 GPM, but actually went back and bought a 2.2 for the main sink, still have a 4.75 in the prep sink for when I really want to fill something fast.
https://www.amazon.com/gp/product/B07C1SGPTR
Make sure yours uses standard aerators.
And just for the record, when it comes to these government regulators, as with the ones who inflicted modern gas cans spouts on us, and who are trying to eliminate ICE-powered cars - if I could get away with kicking them in the gonads, I would. They deserve it.
#6 Amazon won’t ship aerators to California that exceed 1.8 gallons per minute.
I either remove the restrictor or use a nail to make the holes bigger.
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In 2015, the California Energy Commission adopted new kitchen and lavatory faucet standards, setting the maximum flow rate for kitchen faucets and aerators at 1.8 gallons per minute (gpm) with optional temporary flow of 2.2 gpm at 60 pounds per square inch (psi). California also set the maximum flow rate for private lavatory faucets at 1.2 gpm and the maximum flow rate for public lavatory faucets at 0.5 gpm. The standards went into effect in January 2016.
https://appliance-standards.org/product/faucets
#6 I am in California. This is what I see when I go to the link you posted.
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