Deuteronomy 12:15
Regulations for Profane Slaughter
12:15 On the other hand, you may slaughter and eat meat as you please when the Lord your God blesses you in all your villages. Both the ritually pure and impure may eat it, whether it is a gazelle or an ibex.
Deuteronomy 14:7
14:7 However, you may not eat the following animals among those that chew the cud or those that have divided hooves: the camel, the hare, and the rock badger. (Although they chew the cud, they do not have divided hooves and are therefore ritually impure to you).
Deuteronomy 24:4
24:4 her first husband who divorced her is not permitted to remarry her after she has become ritually impure, for that is offensive to the Lord. You must not bring guilt on the land which the Lord your God is giving you as an inheritance.