The seal manufacturer code as defined in the Annex 1C chapter 5.3 Sealing, is the code identifying a manufacturer of certified seals according to the standard EN 16882.
The Laboratory competent for Interoperabilty tests maintains and publishes the list of seal manufacturer codes on its web site (Requirement 401 of Annex 1C).
Communications regarding seal's activities (new manufacturers, new laboratories, ...) must be addressed to: jrc-iot@ec.europa.eu
NB. The requested seal manufacturer code will be inserted as soon we have received a copy of the corresponding certificate.
NB. Only EN 16882 certified seals are allowed to bear the T logo.
NB. Workshops are not allowed to place a seal without T logo after the expiry date of self-certification (Last use of seals without T logo).
NB. As the seal shall be replaced every two years, no seals without T logo can be found in use two years after the expiry date of self-certification (Last use of seals without T logo).
| Company Name | Code Value | Code Assignment Date | Expiry date of self-certification (Last use of seals without T logo) | EN 16882 Certification Date |
| Royal Pack | RP | 18/05/2018 | 28/02/2022 | 15/11/2021 |
| Precintia Seguridad (formerly Precintia International) | PR | 29/06/2018 | 28/02/2022 | |
| Unisto AG | UN | 07/07/2018 | 28/02/2022 | 16/11/2021 |
| Bednorz GmbH | BP | 10/07/2018 | 28/02/2022 | |
| KISSLING ELEKTROTECHNIK GMBH | KE | 07/12/2018 | 28/02/2022 | |
| Dilogics Europa S.L. | DL | 27/06/2019 | 28/02/2022 | |
| Acme Seals Ltd | AS | 23/09/2019 | 28/02/2022 |
| Laboratory name | Website |
| AIMPLAS | www.aimplas.es |
| IWS | www.iws-hamburg.de |