301.89-9—Assembly and inspection of regulated articles.
        
        (a) 
         Persons requiring certification or other services must request the services of an inspector  4 at least 24 hours before the services are needed.
    
    Code of Federal Regulations
Footnote(s): 4 See footnote 1.
        
        (b) 
         The regulated articles must be assembled at the place and in the manner the inspector designates as necessary to comply with this subpart.