Thanks for the information (and apologies for editing whilst you
were posting!).
The Army has just released new definitions of US Warrants. I've
added these below.
US Army Warrant officer definitions
The Army WO is a self–aware and adaptive technical expert, combat
leader, trainer, and advisor. Through progressive levels of
expertise in assignments, training, and education, the WO
administers, manages, maintains, operates, and integrates Army
systems and equipment across the full spectrum of Army operations.
Warrant Officers are innovative integrators of emerging
technologies, dynamic teachers, confident warfighters, and
developers of specialized teams of soldiers. They support a wide
range of Army missions throughout their career. Warrant officers in
the Army are accessed with specific levels of technical ability.
They refine their technical expertise and develop their leadership
and management skills through tiered progressive assignment and
education. The following are specific characteristics and
responsibilities of the separate, successive WO grades.
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.
c. Chief warrant officer three. CW3s are
commissioned officers with the requisite authority pursuant to
assignment level and position as given by the President of the
U.S.. CW3s are advanced-level technical and tactical experts who
perform the primary duties of technical leader, trainer, operator,
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. CW3s 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. CW3s primarily support levels of operations from team
or detachment through brigade, requiring interaction with all
soldier cohorts and primary staff. They provide leader development,
mentorship, advice, and counsel to NCOs, other WOs and branch
officers. CW3s advise commanders on WO issues.
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.
e. Chief warrant officer five. CW5s are
commissioned officers with the requisite authority pursuant to
assignment level and position as given by the President of the
U.S.. CW5s are master-level technical and tactical experts who
perform the primary duties of technical leader, manager,
integrator, advisor, or any other particular duty prescribed by
branch. They provide direction, guidance, resources, assistance,
and supervision necessary for subordinates to perform their duties.
CW5s have specific responsibility for accomplishing the missions
and tasks assigned to them. CW5s primarily support brigade,
division, corps, echelons above corps, and major command
operations. They must interact with NCOs, other officers, primary
staff and special staff. They provide leader development,
mentorship, advice, and counsel to WOs and branch officers. CW5s
have special WO leadership and representation responsibilities
within their respective commands. They provide essential advice to
commanders on WO issues."