It was mandated by our organization. We use the on-farm food safety program to make it mandatory for our producers. The implementation date was May 2014, but looking at the history books, we see that there wasn't ubiquitous use throughout the industry. There were segments that were using category I antibiotics. We had a year-long implementation period, as we are doing now, and during that period we saw people reduce their use and put in different practices.
It's the industry that has done it. I think it's something to behold, in North America and even Europe, that we've been able to use some of the reports coming from surveillance and make these decisions on behalf of the industry.