Beginning Friday, 33 museums in Beijing will open to visitors, free of charge. Some, already are taking measures to prevent chaos, with the coming of the expected visitor boom. At the Capital Museum, visitors must book their tickets in advance. The museum's deputy curator Han Yong says the museum is capable of handling three-thousand visitors per day. In order to be allowed free admission, museum visitors will be required to present their identity cards to ensure the daily capacity is not exceeded. The Chinese government intended to remove all admission charges at state-run museums earlier this month. Some admission charges WERE removed. But the Fujian Provincial Museum, one of the first to offer free admission, was overwhelmed by visitors. Several exhibits, including an elephant specimen, were damaged. So plans had to be put in place to maintain order. The museums slated for free admission in Beijing include public museums and memorial halls, belonging to municipal or district cultural and heritage departments. Patriotic, educational venues operated by municipalities also are included. Kong Fanzhi, head of the Beijing Municipal Administration of Cultural Heritage, says most of Beijing's 33 museums will impose a limit on the number of visitors every day. The numbers will be controlled by distributing tickets. He also says historical architectural sites and those like the Forbidden City are not to be included on the list of free venues. China has more than 2,300 museums. Last year they were visited by about 150-million people. Before the end of March, free admission will apply at 600 of the museums. The number is expected to grow to around 1,400 next year.