SDS (Student Direct System), helps international students to obtain their study permits more quickly. Durham College comes under SDS along with many other SDS colleges in Ontario. You still need to fulfill all conditions for a study permit even though the SDS offers a simplified application process and quicker processing timeframes. Applications for SDS study permits will be processed in 45 days or less. You will be able to request a complete return of your Guaranteed Investment Certificate (GIC) straight from the bank that issued it.