Recently, the pros and cons of so-called ‘Official English’ laws have been a matter of contention. These laws vary, but all seek to mandate the language used in public transactions. We consider such regulations from the standpoint of entry barriers which both generate restriction rents and (possibly) may mitigate congestion of local public goods. Using standard econometric techniques, we examine the various factors which might tend to determine whether a state will have a law, including measures of the political clout of organized labor and the degree of congestion of local public goods within the jurisdiction.