Section 476A.2 - Certificate required1. Commencing January 1, 1977, a person shall not commence to construct a facility except as provided in section 476A.9 unless a certificate for the facility has been issued by the board. This subchapter shall not apply to persons who prior to July 1, 1976:a. Have acquired a site for a facility; and,b. Have publicly announced the intention to construct a facility; and,c. Have let contracts for major components of a facility.2. Any significant alteration, as determined by the board, in the location, construction, maintenance, or operation of a facility whether constructed before or after July 1, 1976, shall require an application for an amendment to a certificate or a certificate, whichever is appropriate. "Significant alteration" shall include but shall not be limited to a change in the type of fuel used by the major electric generating facility.3. Any person required to obtain a certificate or an amendment to a certificate shall construct, operate and maintain the facility according to the terms of the certificate and any amendments to the certificate. A certificate shall only be issued pursuant to this subchapter.4. This subchapter shall not apply to an electric power generating plant, or combination of plants at a single site, with a total capacity of more than twenty-five but less than one hundred megawatts of electricity if the owner or operator prior to January 1, 1990, has met all of the following conditions: a. Acquired a site for the facility.b. Publicly announced the intention to construct a facility at that site.c. Let contracts for major components of the facility.