Studies of self-regulation suggested that self-control requires finite resources; this requirement, in turn, may present a significant challenge for those trying to recover from or control addictive behaviors. The present study examined the relationships between self-regulation and abstinence maintenance among adults in recovery (n = 606: 407 men, 199 women; M age = 38.5 years) residing in self-governed, communal-living, abstinent homes across the United States. Self-regulation scores (controlling for sex and age) were positively related to length of abstinence. In addition, a factor analysis of self-regulation scores resulted in some differentiation between general self-discipline and impulsivity in self-control related to addiction. The relationship between impulsivity and length of abstinence was stronger than the relationship derived between general self-regulation and length of abstinence.