There is hereby incorporated by reference for the purpose of establishing employee personnel rules and regulations the document entitled “Employee Personnel Manual.” No fewer than three copies of said document shall be marked or stamped “Official Copy as adopted by the Code of the City of Park City” and which there shall be attached a copy of this section. Said official copies shall be filed with the city clerk and shall be open to inspection and available to the public at all reasonable hours. All departments of the city shall be supplied with copies of such rules and regulations as may be deemed necessary.