A meat or dairy tax is a tax levied on the purchase or consumption of meat and/or other animal products to disincentivize the production or consumption of meat products.

Meat and dairy production is known to be a disproportional contributor of emissions, attributing approximately half of food-derived GHG emissions, while only accounting for one-third of the dietary energy intake worldwide (Broeks et al., 2020). Hence, many have advocated for a meat production or consumption tax (see Wikipedia).

Will a meat or dairy consumption tax go into effect in the US or any EU member state by 2023?

This question resolves positively if a meat or dairy consumption tax is imposed by the US federal government, or by any country that is a EU member state (at the time when it imposes such a tax), by 2023-01-01 at 12:00PM EST.

Qualifying taxes include excise tax (i.e. a per unit tax that applies to a narrow range of products), or a sales tax (i.e. a tax levied on the sale of a good to its final end user and is charged every time that item is sold retail).
The tax must be applied to the meat of any of the following: cattle, pig, sheep, chicken; or to cow milk
Positive resolution requires that the consumption tax is applied nation-wide, and that the tax goes into effect by the resolution date.
An increase in VAT specific to meat and dairy products in any member state of the EU will also count towards positive resolution.