The Rwandan parliament is debating a draft law whereby clerics would have to have a degree in theology before being allowed to preach.
The authorities say it is important to bring order into churches and mosques, where unqualified clerics often mislead congregations.
Earlier this year, about 700 churches were shut down in Rwanda for noise pollution and failing to comply with building regulations.
There has been an explosion in the number of Pentecostal churches in the country. Some are huge and attract enormous crowds.
Others are tiny structures built without planning permission.