| National Genomics Center for Wildlife and Fish Conservation | A Protocol for Collecting Environmental DNA Samples From Streams | Website |
| National Genomics Center for Wildlife and Fish Conservation | A protocol for collecting eDNA samples from snow tracks: field protocol (part 1) (Version 1.5) | Website |
| National Genomics Center for Wildlife and Fish Conservation | A protocol for collecting eDNA samples from snow tracks: filtration (part 2) (Version 1.4) | Website |
| USGS | Environmental DNA Sampling Protocol—Filtering Water to Capture DNA from Aquatic Organisms (Chapter 13, Section A, Book 2) | Website |
| Federal Office for the Environment (FOEN/OFEV/BAFU) | Environmental DNA applications in biomonitoring and bio-assessment of aquatic ecosystems. Guidelines | Website |