Question: can tibetan buddhist monks marry?
Answer: Tibetan monks follow the Mūlasarvāstivāda vinaya lineage. Lamas who take bhikṣu vows are not allowed to marry. The Nyingma school includes a mixture of bhikṣus and non-celibate ngakpas, and it is not unusual for lamas to wear robes closely resembling monastic garb despite them not being bhikṣus.