The treatment approach characterized by a strict set of guidelines and community involvement is known as:

The correct answer is therapeutic communities. This treatment approach is characterized by a structured environment where individuals receive treatment for addiction in a community setting. Therapeutic communities emphasize personal responsibility and accountability while fostering social interactions within a supportive group. They involve individuals living together in a residential environment, which allows for intensive engagement with peers and staff in the recovery process.

The strict guidelines in therapeutic communities help establish a routine and promote a sense of discipline, which is vital for individuals working towards recovery. Such settings not only provide treatment but also create an opportunity for residents to learn from each other, challenge problematic behaviors, and support one another through shared experiences.

In contrast, individual therapy focuses on one-on-one sessions and may not involve the community aspect as thoroughly as therapeutic communities. Support group meetings provide a social network for people in recovery, but they do not encompass the structured environment characteristic of therapeutic communities. Outpatient care allows individuals to receive treatment while living at home, lacking the immersive community experience found in therapeutic communities.