11.42—How does the authorized official apply the NRDAM/CME or NRDAM/GLE?
        
        (a) 
         The authorized official must perform a preliminary application of the NRDAM/CME or NRDAM/GLE with the data inputs and modifications developed under  § 11.41. Volume II of the NRDAM/CME technical document (incorporated by reference, see  § 11.18) describes how to apply the NRDAM/CME. Volume II of the NRDAM/GLE technical document (incorporated by reference, see  § 11.18) describes how to apply the NRDAM/GLE. For cases involving releases of two or more substances or a release of a mixture of substances, the authorized official may only apply the NRDAM/CME or NRDAM/GLE once using only one of the substances.
    
    
        
        (b) 
         If the preliminary application of the NRDAM/CME or NRDAM/GLE indicates damages in excess of $100,000, then the authorized official must decide whether to: