Bump because this may soon become outdated. The US may have a guideline similar to Canada's.
https://www.ccsa.ca/sites/default/files/2023-05/CGAH-Drinking-Less-is-Better-en.pdf
If you don't feel like opening that, light drinking is 2 drinks or fewer a week, moderate is up to 6 drinks a week regardless of gender, and heavy is anything more.
And here's a more detailed report if you're bored:
https://www.ccsa.ca/sites/default/files/2023-01/CCSA_Canadas_Guidance_on_Alcohol_and_Health_Final_Report_en.pdf