2422.7—Posting notice of filing of a petition.
        
        (a) Posting notice of petition.
         When appropriate, the Regional Director, after the filing of a representation petition, will direct the agency or activity to post copies of a notice to all employees in places where notices are normally posted for the employees affected by issues raised in the petition and/or distribute copies of a notice in a manner by which notices are normally distributed.
    
    
    
        
        (c) Duration of notice.
         The notice should be conspicuously posted for a period of ten (10) days and not be altered, defaced, or covered by other material.