,,ii #aacth ,,congress #b;d ,session ,s4 #becj ,,in ,,the ,,senate ,,of ,,the ,,united ,,states ,june #be1 #bjad ,mr4 ,heller introduced the following bill2 which was read twice and referred to the ,committee on ,environment and ,public ,works ,a ,,bill ,to amend title #ah1 ,united ,states ,code1 to prohibit the importation or exportation of mussels of a certain genus1 and for other purposes4 #a4 ,short title ,this ,act may be cited as the ,protecting ,lakes ,against ,quaggas ,act of #bjad or as the ,,plaq ,act of #bjad4 #b4 ,in general ,section #db of title #ah1 ,united ,states ,code1 is amended-- 7#a7 in subsection 7a77#a7-- 7,a7 by striking of the zebra mussel of the species ,dreissena polymorpha22 and 7,b7 by inserting after ,hypophthalmichthys nobilis2 the following3 of the species of mussels of the genus ,dreissena22 and 7#b7 by adding at the end the following3 7d7 ,nothing in this section applies to-- 7#a7 the importation or transportation of prohibited species through the operation of a public water system or a related water conveyance1 storage1 or distribution facility2 or 7#b7 the possession or conveyance of water supplies containing prohibited species by a public water system operator4 4