This study extends the analysis of parliamentary free voting by examin
ing a non-British example: Canadian MPs' voting behavior on Bill C-43,
which attempted to establish a federal abortion law As in most previo
us studies, we find that partisanship was by far the best predictor of
voting behavior. Unlike previous research, however, we analyze free v
otes at every stage of the legislative process and find different voti
ng dynamics at different stages. In general, Canadian MPs felt at grea
ter liberty to vote as their consciences dictated when their votes mat
tered least. On the key roll calls leading to final disposition, howev
er; when voting was most visible and outcomes most important, Canadian
MPs re-coalesced around their parties.