Maintain our food standards post-Brexit

The Government has repeatedly promised it will not compromise on our food standards in new trade deals that it agrees, such that produce including chlorinated chicken and hormone-fed beef would still be restricted. A statutory instrument agreed last year revokes legal reference to the list of restricted/banned medicines for use on farm animals-why? A trade deal that compromises our food standards and/or the environment, even with higher tariffs for sub-standard produce, should not be agreed.