a. Warrant officer one. An officer appointed by warrant with the requisite authority pursuant to assignment level and position given by the Secretary of the Army. WO1s are basic level, technically and tactically focused officers who perform the primary duties of technical leader, trainer, operator, manager, maintainer, sustainer, and advisor. They also perform any other branch-related duties assigned to them. They also provide direction, guidance, resources, assistance, and supervision necessary for subordinates to perform their duties. WO1s have specific responsibility for accomplishing the missions and tasks assigned to them and, if assigned as a commander, the collective or organizational responsibility for how well their command performs its mission. WO1s primarily support levels of operations from team or detachment through battalion, requiring interaction with all soldier cohorts and primary staff. They provide leader development, mentorship, and counsel to enlisted soldiers and NCOs.

    b. Chief warrant officer two. CW2s are commissioned officers with the requisite authority pursuant to assignment level and position as given by the President of the U.S.. CW2s are intermediate level technical and tactical experts who perform the primary duties of technical leader, trainer, operator, manager, maintainer, sustainer, and advisor. They also perform any other branch-related duties assigned to them. They provide direction, guidance, resources, assistance, and supervision necessary for subordinates to perform their duties. They have specific responsibility for accomplishing the missions and tasks assigned to them and, if assigned as a commander, the collective or organizational responsibility for how well their command performs its mission. CW2s primarily support levels of operations from team or detachment through battalion, requiring interaction with all soldier cohorts and primary staff. They provide leader development, mentorship, advice, and counsel to NCOs, other WOs and company-grade branch officers.

   d. Chief warrant officer four. CW4s are commissioned officers with the requisite authority pursuant to assignment level and position as given by the President of the U.S.. CW4s are senior-level technical and tactical experts who perform the primary duties of technical leader, manager, maintainer, sustainer, integrator and advisor. They also perform any other branch-related duties assigned to them. They provide direction, guidance, resources, assistance, and supervision necessary for subordinates to perform their duties. CW4s have specific responsibility for accomplishing the missions and tasks assigned to them and, if assigned as a commander, the collective or organizational responsibility for how well their command performs its mission. They primarily support battalion, brigade, division, corps, and echelons above corps operations. They must interact with NCOs, other officers, primary staff, and special staff. CW4s primarily provide leader development, mentorship, advice, and counsel to NCOs, other WOs and branch officers. They have special mentorship responsibilities for other WOs and provide essential advice to commanders on WO issues.