diff --git a/src/modality-specific-files/electroencephalography.md b/src/modality-specific-files/electroencephalography.md
index 739a266aa3..f5f042bc84 100644
--- a/src/modality-specific-files/electroencephalography.md
+++ b/src/modality-specific-files/electroencephalography.md
@@ -37,6 +37,7 @@ stored in one of the following formats:
 | [BrainVision Core Data Format][bvformat]          | `.vhdr`, `.vmrk`, `.eeg` | Each recording consists of a  `.vhdr`, `.vmrk`, `.eeg` file triplet.                                                                                                                                 |
 | [EEGLAB](https://sccn.ucsd.edu/eeglab/index.php)  | `.set`, `.fdt`           | The format used by the MATLAB toolbox [EEGLAB](https://sccn.ucsd.edu/eeglab/index.php). Each recording consists of a `.set` file with an OPTIONAL `.fdt` file.                                       |
 | [Biosemi](https://www.biosemi.com/)               | `.bdf`                   | Each recording consists of a single `.bdf` file. [`bdf+`](https://www.teuniz.net/edfbrowser/bdfplus%20format%20description.html) files are permitted. The capital `.BDF` extension MUST NOT be used. |
+| [Neurodata Without Borders (NWB)][nwb]            | `.nwb`                   | Each recording consists of a single `.nwb` file.                                                                                                                                                     |
 
 It is RECOMMENDED to use the European data format, or the BrainVision data
 format. It is furthermore discouraged to use the other accepted formats over
@@ -490,3 +491,4 @@ actual anatomical nasion: `sub-0001_ses-001_acq-NAS_photo.jpg`
 <!-- Link Definitions -->
 
 [bvformat]: https://www.brainproducts.com/support-resources/brainvision-core-data-format-1-0/
+[nwb]: https://neurodatawithoutborders.github.io/
diff --git a/src/modality-specific-files/intracranial-electroencephalography.md b/src/modality-specific-files/intracranial-electroencephalography.md
index 6b89e9c4f8..84156f10c5 100644
--- a/src/modality-specific-files/intracranial-electroencephalography.md
+++ b/src/modality-specific-files/intracranial-electroencephalography.md
@@ -36,7 +36,7 @@ stored in one of the following formats:
 | [European data format](https://www.edfplus.info/)                         | `.edf`                   | Each recording consists of a `.edf` single file. [`edf+`](https://www.edfplus.info/specs/edfplus.html) files are permitted. The capital `.EDF` extension MUST NOT be used. |
 | [BrainVision Core Data Format][bvformat]                                  | `.vhdr`, `.vmrk`, `.eeg` | Each recording consists of a  `.vhdr`, `.vmrk`, `.eeg` file triplet.                                                                                                       |
 | [EEGLAB](https://sccn.ucsd.edu/eeglab/index.php)                          | `.set`, `.fdt`           | The format used by the MATLAB toolbox [EEGLAB](https://sccn.ucsd.edu/eeglab/index.php). Each recording consists of a `.set` file with an OPTIONAL `.fdt` file.             |
-| [Neurodata Without Borders](https://nwb-schema.readthedocs.io/en/latest/) | `.nwb`                   | Each recording consists of a single `.nwb` file.                                                                                                                           |
+| [Neurodata Without Borders][nwb]                                          | `.nwb`                   | Each recording consists of a single `.nwb` file.                                                                                                                           |
 | [MEF3](https://osf.io/e3sf9/)                                             | `.mefd`                  | Each recording consists of a `.mefd` directory.                                                                                                                            |
 
 It is RECOMMENDED to use the European data format, or the BrainVision data
@@ -546,3 +546,4 @@ onset	duration	trial_type	electrical_stimulation_type	electrical_stimulation_sit
 <!-- Link Definitions -->
 
 [bvformat]: https://www.brainproducts.com/support-resources/brainvision-core-data-format-1-0/
+[nwb]: https://neurodatawithoutborders.github.io/
diff --git a/src/schema/rules/files/raw/eeg.yaml b/src/schema/rules/files/raw/eeg.yaml
index 676d66dc1b..c0b81be8b8 100644
--- a/src/schema/rules/files/raw/eeg.yaml
+++ b/src/schema/rules/files/raw/eeg.yaml
@@ -11,6 +11,7 @@ eeg:
     - .set
     - .fdt
     - .bdf
+    - .nwb
   datatypes:
     - eeg
   entities: