President Thein Sein on Monday signed into law the last of four controversial bills championed by radical Buddhists but decried by rights groups as aimed at discriminating against the country's Muslim minority Reuters reported on 31 August.
He signed the Monogamy Bill after it was passed by parliament on August 21, Zaw Htay, a senior official at the president's office, told Reuters. The law was briefly sent back to parliament for review before being signed.
The bill sets punishments for people who have more than one spouse or live with an unmarried partner other than the spouse.
The government has denied the law is aimed at Muslims, estimated to make up about 5 percent of the population, and some of whom practice polygamy.
The president also signed two other laws, which restrict religious conversion and interfaith marriage, on August 26, Zaw Htay said.
The measures are part of four "Race and Religion Protection Laws" championed by the Committee for the Protection of Nationality and Religion, or Ma Ba Tha.
In May, the president also signed a Ma Ba Tha-backed population control bill that forces some women to space three years between each birth.