SEWD
The abbreviation SEWD stands for:
- Science Education and Workforce Development
- Space Control and Electronic Warefare Detachment
- Stock East Water District , a California drinking water company
- Interfering measures or other third party interference , an indefinite legal term from the Atomic Energy Act (AtG) (e.g. in AtG § 7 Paragraph 2 No. 5: The license may only be granted if the required protection against interfering measures or other third party interference is guaranteed ); however, the designation "disruptive measures or other third party influence" is not defined in any more detail in the AtG.