Laws of Uncleanness: Seed of Copulation

If a man lay with his wife, they both have to wash themselves in water after and be unclean until night comes. Any clothing or skin that the seed of copulation touches is unclean and must be washed in water before even so that it will be clean when night comes.. The husband and wife are unclean, but they cannot defile anyone else by touching them physically. A garment or person unclean by seed of copulation cannot make anyone else unclean unless they touch the seed of copulation itself. A person unclean by seed of copulation is not required to go without the camp, so they can be amongst people, but no unclean person can enter the sanctuary. [Lev 15:31] The unclean person cannot eat of the sacrifice of peace offerings [Lev 7:20-21] but they can eat of the  food prepared at home on common and feast days.[Deut 12:20-23] 

Lev 15:16 

And if any man's seed of copulation go out from him, then he shall wash all his flesh in water, and be unclean until the even. 

Lev 15:17 

And every garment, and every skin, whereon is the seed of copulation, shall be washed with water, and be unclean until the even. 

Lev 15:18 

The woman also with whom man shall lie with seed of copulation, they shall both bathe themselves in water, and be unclean until the even.

Laws for the sons of Aaron: 

Lev 22:4 

What man soever of the seed of Aaron is a leper, or hath a running issue; he shall not eat of the holy things, until he be clean. And whoso toucheth any thing that is unclean by the dead, or a man whose seed goeth from him
Lev 22:5  Or whosoever toucheth any creeping thing, whereby he may be made unclean, or a man of whom he may take uncleanness, whatsoever uncleanness he hath; 

Lev 22:6 

The soul which hath touched any such shall be unclean until even, and shall not eat of the holy things, unless he wash his flesh with water. 

Lev 22:7 

And when the sun is down, he shall be clean, and shall afterward eat of the holy things; because it is his food.