permissible

adjective
     
per‧mis‧si‧ble formal
allowed by law or by the rules [= allowable; ≠ impermissible]:
the maximum permissible level of radiation

Dictionary results for "permissible"
Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.