Lincoln High School has set the ground rules for its new trial allowing students to grow facial hair.
It is dropping its clean-shaven only rule after its students won a year-long campaign for facial hair.
A board of trustees meeting was held last week to finalise the rules and the length of the trial period. The new rules require facial hair to be tidy and no longer than 3cm.
Facial hair must be groomed and not extend on to the neck. Longer beards may be allowed for medical or cultural reasons.
Board of trustees chairman Adrian Paterson said he does not think the length of
the beards will be an issue.