Not for air source. Source: your link. Air source heat pumps are a lot easier, so they are the majority of installs. I expect the national code doesn't give

Not for air source. Source: your link. Air source heat pumps are a lot easier, so they are the majority of installs. I expect the national code doesn't give a minimum COP for air source because the performance changes with air temperature. The bulk of my heating cost occurs when it is 10-20 ⁰F outside, where someone located in a warmer spot might have most of their heating at 35-45 or whatever.