Section 100.7 - Restriction on use(a) You may not use fish or wildlife or their parts, taken pursuant to the regulations in this part, unless provided for in this part.(b) You may not exchange in customary trade or sell fish or wildlife or their parts, taken pursuant to the regulations in this part, unless provided for in this part.(c) You may barter fish or wildlife or their parts, taken pursuant to the regulations in this part, unless restricted in §§ 100.25 , 100.26 , 100.27 , or 100.28 .