# Overview
> Guest controller Approval is a permission that allows a foreign controller to provide service in a division which differs from the member's registered division. The IVAO Algeria Division is taking part in the GCA program according to the R & R 5.1.7.
# Facility endorsements
> ATC positions are subject to Facility Rating assignments. which are regulated and enforced by the DZ-ATC Operations Department and require the holder of a GCA to meet these standards.
# How to request a GCA
> Familiarize yourself with this document and procedure enforced inside the DZ division.
> Visit this link to apply: https://web.dz.ivao.aero/
> Schedule and perform practical checkout with one of our trainers
> Execute 2 or more sessions deemed necessary to gain the GCA.
# Restrictions
> All users with ADC (or higher) rating can apply for a GCA. The list below shows the positions allowed for each rating:
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> *Applicants wishing to take on ACC positions are required to undergo a mandatory session with the Divisional Training Department*
# Validity
> GCA Holders are required to connect at least two (2) hours every month, or five (5) hours every 2 months to maintain the Approval.
# GCA Removal
> GCA holders shall have his/her GCA removed from their respective IVAO profile because of the following reasons:
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> Failure to log in at the required time according to the policy.
> Failure to provide high-quality ATC service at the current GCA rating.
> Non-compliance with the GCA requirements.
> Violation of IVAO Rules and Regulations.
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> Any Failure and/or violation will cause the approval to be revoked with no prior warning. **Members under special circumstances may have the validity period requirement amended only with prior written agreement from the Training coordinators and/or Division HQ.**