Religious liberty advocates in Russia say proposed amendments to a national law seek to regulate free religious expression in the country and endanger profession of faith provisions in the Russian constitution.

The amendments to the 1997 law called "On Freedom of Conscience and Association" specifically target so-called "missionary activity" in the country, experts say.

If passed, the anticipated amendments will "not only contradict the constitution, but also violate the right to freedom of conscience and faith," said Viktor Vitko, director of Public Affairs and Religious Liberty (PARL) for the Seventh-day Adventist Church in Euro-Asia.

While the Russian constitution includes religious liberty provisions, the government does not consistently uphold the equality of minority religions before the law, according to the Religious Freedom World Report, a publication of the world church's PARL department.

More than 52,000 Seventh-day Adventists worship in Russia, part of the two percent of Russians who call themselves Christian. Reports indicate that Adventists are generally allowed to evangelize freely, but religious liberty experts worry that if passed, the amendments would jeopardize that freedom.

Vitko's comments came a week after representatives from the Euro-Asia chapter of the International Religious Liberty Association (IRLA), the Slavic Law Center and the Institution of Religion in Law met in Moscow to defend missionary activity as a fundamental expression of freedom of conscience.

The law in question already gives the Russian Orthodox Church preferred status and "significantly disadvantages" some religious groups deemed "nontraditional," according to the World Report. When passed in 1997, the law required every religious and faith community to register before 2001. At that point, more than 2,000 yet unregistered organizations were "dissolved," the report said.

Amendments to the law might lead to "constant surveillance" by authorities, said John Graz, Adventist world church Public Affairs and Religious Liberty director. "This would make life for religious minorities and religious dissidents more difficult," he added.

Despite existing challenges, finding support for increased religious freedom in Russia is difficult, Yuri Sipko, chair of the Russian Union of Evangelical Christians-Baptists (RUECB), said. Because Russia is home to a large population of non-believers who align themselves with Russian Orthodoxy but don't practice it, many citizens may not have a sharpened sense of what restrictions could mean for active faith groups, Sipko speculated.