Letters for Canada Revenue Agency are ordered through Edmonton Public School Division and not completed at the school level.
Please visit the School Division website at this link to order your letter.
If the student is currently enrolled at Ross Sheppard High School please contact the Student Services office at 780-448-5000 and press '6' for Student Services. Alternatively, you can have your student pop by Student Services to request a letter.
If you have already graduated but you require a letter showing your registration history, please order this letter from the Edmonton Public School Division website here.