If you want to set up and operate a plant that could damage the environment or endanger the general public, you need a permit under immission control law.
Are you applying for a permit for installations under the simplified procedure? Then you can obtain a permit from the competent authority for the construction and operation of installations of a certain type or scope without public participation.
If you apply for a preliminary decision on an installation requiring approval, the competent authority may issue this under certain conditions.
If you intend to make significant changes to an installation that requires a permit, you must apply for a permit from the responsible authority.
Do you intend to make changes to an installation requiring a permit that are relevant to an incident? Then you must first apply for a permit from the responsible authority.
Have you applied for a permit for an installation that requires approval? Then you can also apply to start construction of the system ahead of schedule.
If you wish to erect and/or operate part of a new installation, you must apply for a partial permit from the competent authority.
If you are erecting or have erected an installation that requires a permit and this installation has not yet been approved or registered, you must report this to the responsible authority in good time.
If you wish to make a change to an installation, you must notify the competent authority if a permit for the changes has not already been applied for.
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The official information in German is complete and correct.
Updated on 04.09.2026