How often must ventilation and air-conditioning be inspected in Türkiye?

Once a year (Work Equipment Regulation, Annex III, 2.3.1 and Table 3).

What if there is no design project for the installation?

The project is required at the inspection. The employer must have a project prepared for the installation under the Zoning Regulation for Planned Areas and the relevant standards (Annex III, 2.3.6).

Who can carry out the inspection?

Authorised mechanical, metallurgical and materials, mechatronics and manufacturing engineers, technical teachers who graduated in mechanical and metal education, and mechanical technicians or senior technicians registered through EKİPNET (Article 13 and Annex III, 2.3.3).

Is a contract needed before the inspection?

Yes. A contract following the İSG-KATİP template is drawn up between the employer and the authorised inspector and mutually approved at least 1 day before the inspection (Article 7(6)). The report shows the inspector's EKİPNET registration number (Article 7(5)).

TR · Expiry & renewal tracking

Don't miss the yearly inspection of your ventilation and air-conditioning

In Türkiye workplace ventilation and air-conditioning installations must be inspected once a year by authorised persons for conformity with their design project (Work Equipment Regulation, Annex III, 2.3.6 and Table 3). The project is required at the inspection; the employer must have one prepared if none exists.

Under Türkiye's Regulation on Health and Safety Requirements in the Use of Work Equipment, the equipment listed in the Annex III tables is subject to periodic inspection, carried out by persons authorised to perform periodic inspections (Article 7(1)). Unless the relevant standards say otherwise, installations are inspected once a year (Annex III, 2.3.1).

Ventilation and air-conditioning installations are listed in Annex III, Table 3 with an interval of 1 year; the inspection determines whether the installation meets the criteria set out in its design project. The design project is required at the inspection, and the installation is assessed for conformity with the project and with good engineering practice (Annex III, 2.3.6).

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At a glance

Maximum interval	1 year (Annex III, 2.3.1 and Table 3)
Inspection criteria	Conformity with the criteria in the design project (Annex III, Table 3); good engineering practice (Annex III, 2.3.6)
Design project	Required at the inspection; for installations without one, the employer must have a project prepared under the Zoning Regulation for Planned Areas and the relevant standards (Annex III, 2.3.6)
Who inspects	Authorised mechanical, metallurgical and materials, mechatronics and manufacturing engineers; technical teachers who graduated in mechanical and metal education; mechanical technicians or senior technicians (Annex III, 2.3.3)
Contract	A contract following the İSG-KATİP template is drawn up and mutually approved at least 1 day before the inspection (Article 7(6))

The report shows the inspector's EKİPNET registration number (Article 7(5)) and the date on which the next periodic inspection should normally start (Annex III, 1.7.1).

Who is responsible?

The employer. It ensures periodic inspections are done by authorised persons, records the results with a wet signature or a secure electronic signature, and keeps them to show the authorities on request (Article 7(2)(b) and 7(2)(c)). It carries out, or has carried out, the preparations specified by the authorised person before the inspection (Article 7(4)). Periodic inspection reports are kept for as long as the equipment is in use (Annex III, 1.6).

If the deadline passes

If the report finds non-conformities and states that the equipment should not be used until they are fixed, it is not used until then, and the employer marks it with a clearly visible warning (Annex III, 1.9). Minor defects must be fixed by the start date of the next periodic inspection, otherwise they count as major defects (Annex III, 1.9.1). An employer that fails to meet obligations in regulations based on Article 30 of Law No. 6331 is subject to a monthly administrative fine for each provision not complied with (Law, Article 26(1)(n)).

When is an inspection needed besides the yearly one?

Equipment whose safety depends on installation conditions is also inspected after installation and before first use, after major maintenance and repair, and, if not mobile, after every change of location (Article 7(2)(a)). The necessary inspections are also carried out after events that may impair safety, such as changes in working methods, accidents, natural events or long periods out of use (Article 7(2)(b)). The frequency of tests and examinations can be increased based on a risk assessment (Annex III, 1.10).

Tracking it with ExpirySuite

Add each boiler, hot-water tank, generator or installation as a separate asset, upload the periodic inspection report as a file and enter the next inspection start date shown in the report as the expiry date.
Email reminders arrive 60, 30, 14, 7 and 1 days before expiry and on the expiry day, so you can plan the İSG-KATİP contract and the inspection day around them.
Assign the person who organises the inspection as the document owner; overdue records are also reported to managers on days 3, 7 and 14.
You can request the report from the inspector or inspection company through a secure link valid for 14 days, without them needing an account.

Frequently asked questions

How often must ventilation and air-conditioning be inspected in Türkiye?: Once a year (Work Equipment Regulation, Annex III, 2.3.1 and Table 3).
What if there is no design project for the installation?: The project is required at the inspection. The employer must have a project prepared for the installation under the Zoning Regulation for Planned Areas and the relevant standards (Annex III, 2.3.6).
Who can carry out the inspection?: Authorised mechanical, metallurgical and materials, mechatronics and manufacturing engineers, technical teachers who graduated in mechanical and metal education, and mechanical technicians or senior technicians registered through EKİPNET (Article 13 and Annex III, 2.3.3).
Is a contract needed before the inspection?: Yes. A contract following the İSG-KATİP template is drawn up between the employer and the authorised inspector and mutually approved at least 1 day before the inspection (Article 7(6)). The report shows the inspector's EKİPNET registration number (Article 7(5)).

Sources

Last checked: Sep 30, 2026 · This page summarises official sources for general information and is not legal advice. Check the linked sources for current rules and fees.

Made for ventilation and air-conditioning periodic inspection (Türkiye)

A ready template for ventilation and air-conditioning periodic inspection (Türkiye) with sensible validity defaults, so you enter less and track more.

Reminders on time

Email alerts at 60, 30, 14, 7 and 1 day before each ventilation and air-conditioning periodic inspection (Türkiye) expires, plus overdue escalation to managers.

Assign an owner

Give each ventilation and air-conditioning periodic inspection (Türkiye) an owner and let employees update their own via a secure link — no login needed.