wo times per calendar year in a park, school ground or other similar type of public open space, for educational programs sponsored by the Los Angeles Police Department or the Los Angeles City Unified School District, provided that the Fire Department permit referred to above has first been obtained. Nothing herein shall prevent nor curtail the operation of emergency helicopter landing facilities as required in Section 57.4705 of the Los Angeles Municipal Code. The provisions of this subdivision shall not be construed or interpreted as permitting the establishment of a regularly operating airport, aircraft landing field, heliport or helistop. 7. Temporary Operations of Carnivals and Rides. (Added by Ord. No. 130,076, Eff. 5/26/65.) – Notwithstanding any provisions of this article to the contrary, carnival shows and amusement enterprises of a similar type may be operated in the P Zone for a period of not to exceed five consecutive days in any 30 day period in or upon any single location, provided that: (1) All such operations are conducted at least 200 feet from any school or adjoining occupied property classified in any A or R Zone. (2) Such operations do not cause or produce any dust, gas, smoke, noise, fumes, odors, or vibrations detrimental to other property in the neighborhood or to the welfare of the occupants thereof. (3) Any lights used to illuminate the event are arranged so as to reflect the light away from any adjacent residentially used premises. (4) No public address system in connection with the event is installed on the property unless it is modulated so as not to be disturbing to occupants of any nearby dwelling units. (5) All structures, apparatus and appurtenances shall be removed from the premises the next day following the closing of the carnival. (6) The hours of such operation to be limited between the hours of 10:00 a.m. and 10:00 p.m. 8. Occasional Use of Private Homes for Adult Education Classes. (Added by Ord. No. 132,573, Eff.