90.33—General eligibility.
        
        (a) 
         In addition to the eligibility shown in the Industrial/Business Pool, eligibility is also provided for any corporation proposing to furnish nonprofit radio-communication service to its parent corporation, to another subsidiary of the same parent, or to its own subsidiary. This corporate eligibility is not subject to the cooperative use provision of  § 90.179.
    
    
        
        (b) 
         Eligibility is also provided for a nonprofit corporation or association that is organized for the purpose of furnishing a radio-communications service to persons who meet the eligibility requirements of the Industrial/Business Pool. Such use is subject to the cooperative use provisions of  § 90.179.