# Licenses and Use

OccStress combines assets derived from different source datasets and models.
No single unrestricted license applies to the entire collection. The dataset
card uses `license: other` to point to these source-dependent conditions; this
document does not create an additional license grant.

## Source Requirements

| Source | Required context |
| --- | --- |
| Occ3D-nuScenes | Obtain the relevant nuScenes access and accept its current dataset terms; retain Occ3D's MIT notice for its covered contributions |
| Occ3D-Waymo | Register with Waymo and accept its dataset agreement; retain Occ3D notices, Waymo attribution and applicable downstream conditions |
| UniOcc CARLA | Retain the pinned source dataset's MIT notice and observe applicable simulator/component terms |
| Upstream predictions and corruption assets | Retain relevant method/operator attribution and applicable output conditions; source-code licensing alone does not determine every output's license |

Primary sources: [Occ3D license](https://github.com/Tsinghua-MARS-Lab/Occ3D#license),
[nuScenes terms](https://www.nuscenes.org/terms-of-use),
[Waymo agreement](https://waymo.com/open/terms/) and
[UniOcc source revision](https://huggingface.co/datasets/tasl-lab/uniocc/tree/e81775b36e376f591a1145ca054b72fd541a67eb).
Consult the original terms for their full scope and current conditions.

Waymo's agreement distinguishes dataset copies/modifications, whose recipients
must be registered users who accepted its terms, from conditionally distributed
models and related derivatives. Treat GT-derived manual labels separately from
model-generated predictions; neither file extensions nor hosting location
remove the applicable obligations. Non-commercial restrictions, notices and
attribution remain in force where required.

Waymo-derived assets use data supplied by Waymo LLC. Their access, use and
redistribution remain subject to the
[Waymo Dataset License Agreement for Non-Commercial Use](https://waymo.com/open/terms/).
This source notice does not replace that agreement or its required attribution.

## Publication and Access

The selected publication approach follows Occ3D's public-link and source-terms
notice model, with [insailab/OccStress](https://huggingface.co/datasets/insailab/OccStress)
as the shared entry point. Manual approval is not an additional OccStress
requirement. Users remain responsible for obtaining source-dataset access and
complying with its terms; public visibility is not an unrestricted permission
to use or redistribute the contents.

This card revision does not publish payloads or change repository permissions.
Download availability is described in the [dataset card](README.md). Existing
assembly manifests record preparation evidence, not a new authorization from
source providers. Dataset-specific redistribution review remains separate.

## Included and External Assets

Packages contain reviewed derived occupancy, protocols and supporting metadata.
Original sensors, official clean GT and model weights are external dependencies;
see [EXTERNAL_DATA.md](EXTERNAL_DATA.md). Source references and copied motion
metadata retain their applicable conditions even when stored in protocol files.

Downstream evaluation requires forecaster checkpoints. Prefer official author
links; independently approved experiment weights may be hosted separately.
Upstream weights are not needed to consume already exported occupancy.

Do not redistribute private provenance, credentials, local machine paths or
training caches. Do not include external-data links or their targets in an
OccStress archive. The MIT license in the code repository covers original
OccStress code, not all data, checkpoints or third-party components.