Trinity House (Employment Policy) Mr. John Garrett asked the Secretary of State for Trade if there is a restriction on the employment of foreign nationals on Trinity House light vessels. Mr. Tebbit My Department imposes no restrictions on the employment of foreign nationals by Trinity House or other lighthouse authorities. The selection of employees to serve on their light vessels is a matter for Trinity House. I understand, however, that they are ready to consider foreign nationals who have any necessary work permit and the appropriate qualifications for the post.