You mean biosecurity laws? The USA has its own. We have ours. We don't have rabies, and any number of diseases you have - lyme disease etc... Mad Cow's disease. You name it - we don't have it.
The USA knew and respected this when the FTA with us was negotiated.
Also we don't need your beef. We have have our own. You can eat yours. We have nice lean grass fed beef. You have fatty cheap POS grain fed beef that's too fatty even for McDonalds so they cut down the fat content by blending ours into your burgers. You can go screw yourself though and pay more for ours due to tariffs because you are retarded.
Your food laws are often in conflict and subpar compared to ours. You pump your meat full of hormones and chemicals. That's why your men have tits, Your TV shows are full of them wanting to become women and vice versa.
There are no tariffs on US goods here.
We don't want your diseases here because they would jeapardise our agricultural industries including exports which trade on the fact they are disease free.
If you think I sound nasty - well don't forget your country started it. If the USA didn't target us and treat us like scum I'd be friendly back.