They did not abide by the school regulations.

Every pupil is supposed to know the school regulations.

We want to modify the regulations of our school.

You should observe the school rules.

The school rules require students to wear school uniforms.

Our school administration decided to do away with that school rule.

PTAs in various places are discussing school regulations.

Tom was expelled from school for breaking school rules.

The school's dress code prohibits dyeing your hair a non-natural color.

You should observe the school rules.

You must follow school rules.