5 GCA § 50101: Employment of Aliens in Public Works.

No contractor or subcontractor engaged in the construction of public works for the government of Guam shall knowingly employ, or permit to be employed, any alien in such construction except in cases of extraordinary emergency which endanger life or property, or upon certification by the Employment Service of the Department of Labor that United States citizens are not available in the Territory of Guam in the craft or skill of employee required.