Conservation-restoration of the Statue of Liberty The restored statue was reopened during Liberty Weekend, its 100-year anniversary celebration held July 3–6, 1986. The preparations for the centennial celebration of the Statue of Liberty began in 1979. Formed by the National Park Service (NPS), the custodians of the statue since 1933, to investigate possible development alternatives[incomplete sentence]. A report titled "Analysis of Alternatives", published in December 1980, proposed measures to remedy the certain conditions confronting visitors to the Statue of Liberty, such as the long lines and waiting time to enter the crown of the statue. The proposed measures included the instatement of systems for numbered ticketing
Conservation-restoration of the Statue of Liberty agreed to a working relationship with the Committee. In June 1981, the Committee was incorporated as a non-profit foundation licensed by the state of New York to raise funds for the restoration effort. The Committee hired four French consultants said to have considerable expertise in their respective fields: an architect-engineer, a metals expert, a structural engineer and a mechanical engineer who were asked to compose a technical report on the physical condition of the statue. The French consultants visited Liberty Island in May, June, October and December 1981, before presenting a preliminary white paper to the National Park Service on