According to Maine practice, the law goes into effect 90 days after the legislature adjourns. The legislature usually meets well into June, according to press reports, so that would put the effective date sometime in September. From the date the legislature adjourns, the opponents of same-sex marriage in Maine will have 90 days to gather sufficient signatures to put a repealer on the ballot. According to press reports, they need more than 55,000 signatures of registered voters in order to do that. Based on past referendum efforts, it seems likely that they can get the signatures if they spend the money and try hard enough. If they turn in the signatures early enough for the verification process to be completed on time, the measure would go on the general election ballot in November. If it takes longer, there would be a special election next spring.