First and foremost, all residents must be serious about recovery. He or she must have been clean and sober for at least seventy-two hours and be eighteen years of age or older. Gateway Sober Living Environment is an adult setting for people who wish to be treated as such. Each individual should have completed a residential treatment program or be involved in an outpatient program. Gateway Sober Living Environment requires a thirty-day minimum commitment with ninety days being the suggested length of stay.