Opacity Certification Services, LLC

Customer service is a skill that has been lost on many service organizations in business today, but is essential to Opacity Certification Services.  Our goal is to not just provide the best opacity filter recertification services and new opacity filters, but do these with pride and skill.  We will not be happy until you are.

Our Business

Price and delivery are important factors when considering doing business with a company, especially in today's economic climate.  OCS offers the lowest price for NIST-traceable opacity filter recertification services, and no organization beats our one business day in-house turnaround.

Who We Are

All certifications are performed by Al Siffer, who has over 25 years experience with spectral analysis of opacity filters.  If you ever have any questions with your filters, he can answer it!