| Prior to filing of the P1 visa petition with the USCIS, your employer must obtain an advisory opinion from an appropriate consulting entity or a labor organization, or show that an appropriate peer group, labor organization or management organization does not exist.
If the position is covered under a union contract, your employer may need to obtain a letter of no-objection signed by an official union representative of the local chapter. The letter must state your name and the name of your employer, along with the name of the labor organization and the name and address of the local chapter. The letter must state that the labor organization has reviewed pertinent information about your position and credentials, and that hiring you will not "adversely affect the wages or working conditions of U.S. workers and that, therefore, it has no objection to you being hired". | 
