Hijab rules

It is announced that all students are expected to wear hijab and abide by common practices of modesty and neatness. Following Islamic rules, observing hijab or the Islamic dress code is necessary while in Iran:

• Women's hair must be covered with an appropriate scarf or covering.
• The body should be covered with loose clothes. Female students have to wear proper long manteaues and pants. 
• Students must not wear gaudy dress. Dress with lively colors and thin body cloaks have been forbidden.
• Arms should not be bare, and legs should be covered down to the ankles.
• Students must avoid very short-sleeved shirts, tight torn and short pants, boxer shorts, sleeveless vests, and low seat pants.
• Any clothing, hairstyle, makeup, jewelry and accessory that may be considered obscene or offensive should be avoided.
• All clothing must be clean and neat and should project a well-groomed appearance.
• Sleepers, ties and bow ties are forbidden.

You should dress in a respectful manner within the acceptable standards of the community and culture. The template is provided here.