One of the measures on the Massachusetts ballot Nov. 8, Question 4, concerns marijuana. Specifically, it would legalize marijuana for recreational use by adults. Massachusetts is one of five states voting on legalizing recreational marijuana this month. If the measure passes, it would take effect on Dec. 15. However, marijuana retail outlets may not open until 2018. Some child welfare advocates are concerned about a provision in the measure that says that parents’ use of marijuana can’t be used as the primary basis for losing custody or visitation of their children without “clear, convincing and articulable evidence that the person’s actions related to marijuana have created an unreasonable danger to the safety” of a child. The rationale is that many people use marijuana responsibly, and, just as parents aren’t at risk for losing their children if they have an occasional drink, they shouldn’t face that risk if they use marijuana to relax instead. Those supporting that language in the measure point to Colorado, where recreational marijuana was legalized in 2012. People had their marijuana use used against them in child custody cases. One of the authors of the Massachusetts measure says, “Canna-bigotry in custody matters needs to end.” The state Department of Children and Families says that the language of the measure “could limit a social worker’s ability to consider any substances, including marijuana, as a factor for child custody. However, other child welfare advocates argue that social workers can take into consideration any factors that they believe are endangering