- Letter/Certificate of Donations and/or Humanitarian Goods - Many agencies will included self made letters of humanitarian intent or donation to help facilitate the customs exemption process.
- Proof of duty exemption - May be required at the time of clearance, usually a registered humanitarian agency should be able to obtain some form of letter from the relevant tax revenue authority. A letter may be required for every import, however.
- Certificates of origin or other preference certificates Origin (COO) - Usually generated and certified by the manufacturer, but can be done by the sending agency if required.
- Certificates of inspection.
- Certificates of conformity.
- Phytosanitary certificates.
- Details of any previous customs controls on goods being shipped.
- Some countries have strict source origin requirements.
- Certificates of Inspection (COI) - COIs are usually associated with regulated commodities that may be consumed by humans - example: Medication - or may have adverse effects on human health - example: flammable plastic shelter matial. COIs typically require certification from an outside laboratory testing facility, certified to test the specific chemical properties of the items in question.
- Certificates of Conformity (COC) - COCs are used to confirm that products meet or exceed a certain industry standard, and require inspection by outside testing and certifying companies.
- Phytosanitary Certificates - certification attesting that imported plant based material meets the sanitary requirements of the country in question, usually from an outside laboratory.
- Special handling instructions (dangerous goods, drugs, food).
The chart below outlines the general main steps in a customs clearance process: