# Photograph credits and licenses

This notice applies only to the listed photographs and their derivatives. It does not relicense the article or other site material. These illustrative photographs are not evidence about the Tapiratiba accident.

## boiler-photo.webp

Author: Steamboilers
Source: https://commons.wikimedia.org/wiki/File:313kgh_Complete_Skid_Mounted_Steam_Boiler_Package.jpg
Original: https://upload.wikimedia.org/wikipedia/commons/9/94/313kgh_Complete_Skid_Mounted_Steam_Boiler_Package.jpg?utm_source=commons.wikimedia.org&utm_campaign=index&utm_content=original
License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/
Changes: Resized if needed and converted to WebP; no content retouching.
Context: Illustrative equipment or installation, not a photograph of the Tapiratiba accident or its equipment.

## valve-photo.webp

Author: K. Krallis (SV1XV)
Source: https://commons.wikimedia.org/wiki/File:Safety_valve-01.jpg
Original: https://upload.wikimedia.org/wikipedia/commons/5/5a/Safety_valve-01.jpg?utm_source=commons.wikimedia.org&utm_campaign=index&utm_content=original
License: CC BY-SA 3.0 — https://creativecommons.org/licenses/by-sa/3.0/
Changes: Resized if needed and converted to WebP; no content retouching.
Context: Illustrative equipment or installation, not a photograph of the Tapiratiba accident or its equipment.

## checklist-photo.webp

Author: Oregon Department of Transportation
Source: https://commons.wikimedia.org/wiki/File:Boiler_room_%286267811184%29.jpg
Original: https://upload.wikimedia.org/wikipedia/commons/f/fa/Boiler_room_%286267811184%29.jpg?utm_source=commons.wikimedia.org&utm_campaign=index&utm_content=original
License: CC BY 2.0 — https://creativecommons.org/licenses/by/2.0/
Changes: Resized if needed and converted to WebP; no content retouching.
Context: Illustrative equipment or installation, not a photograph of the Tapiratiba accident or its equipment.

## tapiratiba-og-pt.webp

Author: Steamboilers; editorial design Andrade Safe
Source: https://commons.wikimedia.org/wiki/File:313kgh_Complete_Skid_Mounted_Steam_Boiler_Package.jpg
Original: https://upload.wikimedia.org/wikipedia/commons/9/94/313kgh_Complete_Skid_Mounted_Steam_Boiler_Package.jpg?utm_source=commons.wikimedia.org&utm_campaign=index&utm_content=original
License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/
Changes: Resized and converted to WebP; framed with an editorial text panel. Derivative distributed under CC BY-SA 4.0.
Context: Boiler example only; the card explicitly states no known connection to the accident.

## tapiratiba-og-en.webp

Author: Steamboilers; editorial design Andrade Safe
Source: https://commons.wikimedia.org/wiki/File:313kgh_Complete_Skid_Mounted_Steam_Boiler_Package.jpg
Original: https://upload.wikimedia.org/wikipedia/commons/9/94/313kgh_Complete_Skid_Mounted_Steam_Boiler_Package.jpg?utm_source=commons.wikimedia.org&utm_campaign=index&utm_content=original
License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/
Changes: Resized and converted to WebP; framed with an editorial text panel. Derivative distributed under CC BY-SA 4.0.
Context: Boiler example only; the card explicitly states no known connection to the accident.

## tapiratiba-og-es.webp

Author: Steamboilers; editorial design Andrade Safe
Source: https://commons.wikimedia.org/wiki/File:313kgh_Complete_Skid_Mounted_Steam_Boiler_Package.jpg
Original: https://upload.wikimedia.org/wikipedia/commons/9/94/313kgh_Complete_Skid_Mounted_Steam_Boiler_Package.jpg?utm_source=commons.wikimedia.org&utm_campaign=index&utm_content=original
License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/
Changes: Resized and converted to WebP; framed with an editorial text panel. Derivative distributed under CC BY-SA 4.0.
Context: Boiler example only; the card explicitly states no known connection to the accident.