These certifications are more expensive, so smaller supplement companies are less likely to have them, which is understandable. (mindbodygreen.com)
As the district expands this approach into other schools, schools are also paying smaller supplements to teachers on teams led by excellent teachers. (publicimpact.com)
Small supplements apply for boat, wreck, nitrox and night dives, and the basic package assumes you have your own equipment. (davyjonesdiving.com)