American pair Nancy Coffman and Nancy Madsen, along with Japan's Shoko Noda and England's Wendy Reynolds, will join officiating chair Stephen Taylor and Jan Jackson, the Women's Rules Committee chair, at the tournament.

Coffman and Noda will serve as head clinicians, while Madsen will be the head assignor.

Reynolds will perform the role of head mentor and assessor.

A total of 25 teams are due to compete at the event at the Surrey Sports Park, which runs from July 12 to 22.

"Nancy, Nancy, Shoko and Wendy have over 100 years of lacrosse experience from three continents and more than 25 world events between them which will benefit the umpires and the competition as a whole," said Taylor.

"We have 25 teams participating from four continents and they deserve to have their games called by umpires who are physically, mentally and educationally prepared to deliver the best officiating any FIL world event has seen.

"With almost 100 games over the 10 days of competition in Guildford, our officials are going to be put through their paces starting with three days of clinics and testing overseen by the off field officials and the leadership team.

"I am confident that these four appointees will help us achieve our collective goals and I, on behalf of the FIL, am honoured to be working alongside them."