From the beginning of 2011 1,500 Mosques were shut down by the Tajik government, in addition to banning the hijab for children, banning the use of loudspeakers for the call of prayer, forbidding mosques from allowing women to enter, and monitoring Imams and students learning an Islamic education abroad, having sermons in the Mosque approved by the government and limiting the Mosque sermons to 15 minutes.[570] Muslims experienced the most negative effects from the "Religion Law" enacted by the government of Tajikistan, curtailing sermons by Imams during weddings, making the "Cathedral mosques" the only legal place for sermons to be given by Imams with sermons not being allowed in five-fold mosques, the five-fold mosques are small mosques and serve a limited number of people while the medium and big mosques are categorized as Cathedral mosques, girls who wore the hijab have been expelled from schools and hijabs and beards are not permitted on passport photos.[571] Mosques have been demolished and shut down by the Tajikistan government on the justification that they were not registered and therefore not considered as mosques by the government.[572][573] Tajikistan has targeted religious groups like Jehovah's Witnesses, Jews, Christians, and Muslims who try to evade control by the government, synagogue, churches, and Mosques have been shut down and destroyed, only a certain amount of mosques are allowed to operate and the state must approve all "religious activity", in which younger than 18-year-old children are not allowed to join in.[574] Buildings for religious worship for Jehovah's Witnesses, Protestant Churches, the Jewish Synagogue, and Muslim mosques have been targeted, destroyed, and shut down and prayers are forbidden to take place in public halls, with severed restrictions placed on religion.[575] Churches, a synagogue, and mosques have been destroyed by the Tajikistan government.[576] Government approval is required for Tajiks seeking to engage in religious studies in foreign countries and religious activities of Muslims in particular are subjected to controls by the Tajikistan government.[577] State control has been implemented on Islamic madrasahs, Imams, and Mosques by Tajikistan.[578] A list of sermon "topics" for Imams has been created by the Tajikistan government.[579] Towns are only allowed to have a certain number of mosques and only religious buildings sanctioned by the government are allowed to host religious activities, schools have banned hijab, religious studies in private have been forbidden mosque religious services are not allowed to admit children and non registered mosques have been closed.[580][581][582] Religious matters are banned for children under 18 year old.