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FREQUENTLY ASKED QUESTIONS(FOR FIRMS)

What is Natural Gas?
What are the Advantages of Natural Gas?
What are the Advantages of Using Natural Gas?
Why is Natural Gas Odorized?
What is Heat Insulation?
What are the Benefits of Heat Insulation?
How to Use Natural Gas in a Safe and Economic Way?
How to Use Natural Gas in a Safe an Economic Way in Central Heating?
What is a Certificate?
What is a Certified Firm?
Where and How to Apply to Become a Certified Firm?
What Items should be in the Field of Activity of an Internal Installation Firm?
What Items should be in the Field of Activity of a Polyethylene Firm?
In Application by Firms, How Much Time Should Elapse to Become a Certified Firm once the Necessary Requirements are Met?
What Documents should be Declared in the Case of a Change of Legal Title of the Certified Firm?
What Documents should be Declared in the Case of a Change in the Share Structure of the Certified Firm?
What Documents should be Declared in the Case of a Change of the Managing Director in the Certified Firm?
What Documents should be Declared in the Case of the Appointment of a Legal Proxy by the Certified Firm?
What Documents should be Declared in the Case of a Change of Address or Opening of a New Branch of the Certified Firm (Limited)?
What Documents should be Declared in the Case of a Change of Address or Opening of a New Branch of the Certified Firm (Sole Proprietor)?
When and How should Certified Firms Declare their Liquidation?
How Do Certified Firms Receive their Online Passwords?
What to do When the E-mail Addresses of a Certified Firm is not Receiving IGDAS E-Newsletters?
When should the Certified Firms do their Visa Renewals?
What Documents should be Declared by the Certified Firm for Visa Renewal?
Can the Certified Firms Continue to Operate if They Fail to Renew their Visas on Time?
How Long does it Take to Process the Visa Renewal Application of a Certified Firm?
What Happens to the Visa Status and the Authority of a Certified Firm in the Case of Incomplete or Incorrect Visa Renewal Application?
When can the Visa of a Certified Firm be Re-Issued in the Case of Failure to Renew its Visa at the Required Time?
Who is a Certified Firm Engineer?
What Documents are Required for the Registration or Transfer of an Engineer?
Where can the Engineers Get their Training Certificates from?
What Documents are Required for the Engineer Trainings?
What Trainings should the Engineers Receive to Work in Certified Firms?
Who is a Certified Firm Installation Technician?
What Documents are Required for the Registration or Transfer of an Installation Technician?
Where and When are the Installation Technician Trainings Conducted?
What Documents are Required for Installation Technician Trainings?
What Trainings should the Installation Technicians Receive to Work in Certified Firms?
What is the Validity Period of the Welder Documents of the Installation Technicians, who Work in Certified Firms?
Is there a Validity Period for the Fitter Documents of the Installation Technicians, who Work in Certified Firms?
How Long is the Validity Period of their Documents?
What should Customers do in case they Encounter Problems with the Installation They had Done by a Certified Firm?
What should Customers do if they Want to Do Modifications on their Current Installations?