A Standard Clause that can be included in a collective bargaining agreement (CBA) to memorialize that new employees and employees returning after a break in service are to be regarded as probationary for a specified period and subject to different employment terms than other employees covered by the CBA during that probationary period. This Standard Clause is based on the National Labor Relations Act (NLRA), but may be used by private sector employers subject to the Railway Labor Act (RLA) or public sector employers. This Standard Clause has integrated drafting notes with important explanations and negotiating tips.