New York Employers Application To Have Association Union Or Trustee Plan Accepted As Employers Plan is an application for employers in New York to establish an Association Union or Trustee Plan that meets the requirements of the Internal Revenue Code. The application is used by employers to obtain approval from the Internal Revenue Service (IRS) to accept employer contributions to the plan. There are two types of New York Employers Application To Have Association Union Or Trustee Plan Accepted As Employers Plan: Form 5300 and Form 5310. Form 5300 is used by employers to establish a retirement plan, such as a 401k plan, profit sharing plan, or a stock bonus plan. It is also used to amend existing plans, including changing the plan’s eligibility, vesting, and contribution requirements. Form 5310 is used by employers to apply for a determination letter from the IRS to accept employer contributions to an existing plan. The letter will also specify the types of assets that can be held in the plan.