Atthangika Uposatha Sila (Eight Uposatha Precepts)
Eight Uposatha Precepts are observed on the Uposatha Days (full moon, new moon and the two half-moon days. Before the day’s activities begin, the presiding monk administers the Eight Precepts and after the day’s religious activities are over, administers the Five Precepts, thus releasing the lay Buddhists from the Eight Precepts.