Thank you.
I think the distinction is important. The point sources were largely accomplished through a regulatory approach. They were often industry or municipal sources, so there was an appetite and ability to create a regulatory framework, and then the technology was applied within that framework to achieve the targets.
The challenge with the non-point sources is that by definition they're so dispersed that a regulatory approach would be neither practical nor very well accepted in my view, so it has been more of a broadcasting approach based on education, demonstration, applied research, and working with landowners, and on spreading the word in that way, if you will, and then hopefully an eventual uptake more broadly by the industry.