To exclude shipboard supervisory personnel from selection as employer representatives, and for other purposes.

[AI summary unavailable — showing source text] Amends the National Labor Relations Act to exclude shipboard supervisory personnel from selection as employer representatives, if such personnel are licensed by the U.S. Coast Guard and represented by a labor organization. Provides that picketing or other economic activity undertaken by a labor organization on behalf of such licensed shipboard supervisory personnel shall not be considered a prohibited restraint or coercion.…