SECA
SECA designates maritime sulfur emission control zones and also a tax law governing self‑employment contributions.
Miscellaneous
Community
Southern Early Childhood Association
South Education Center Alternative
South Eastern Crate Association
Special Events and Cultural Amenities
South East Clown Association
Governmental
Self Employment Contribution Act
State Energy Conversion Alliance
State Employee Combined Appeal
Self Employed Contributions Act
Academic & Science
South Eastern Colleges Association
Sulfur Emission Control Area
Society for the Encouragement of Contemporary Art