JAM (2005) Enterprises offers C-NRPP-Certified radon detection, measurement and analysis services to residences and businesses at an affordable price point. C-NRPP is the Canadian National Radon Proficiency Program which oversees radon measurement and mitigation in Canada. Long-Term (LT) testing (91-365 days), Short-Term (ST)Testing, Real estate Transaction testing (ST) and DIY testing kits encompass our services.