Like other nutrition programs around the world, Canada's Food Guide divides nutrition into four main food groups: vegetables and fruit, grain products, milk and alternatives, and meat and alternatives.
Therefore, it is in the school district's discretion to decide how long to keep such records. In keeping with the intent of 603 CMR 23.06, however, the time limit for destruction of the record should probably be not less than sixty years for a transcript and not more than five years for the temporary record.
Employee records may need to be kept for certain time periods based on labor laws, but for tax records you'll want to keep Form W-2 records for at least 5 to 7 years. Documentation used to fill out your tax returns should be kept for at least 5 to 7 years in case of audit.