Editor's note: We have given Jeffrey Gilmore and Michael Loulakis a welldeserved rest this month. The following is reprinted with permission from Contractors Guide. Right to know is a phrase you'd better get to know. No term better symbolizes current efforts to protect workers from the harmful effects of hazardous and toxic chemicals in their work environments. If you are a small contractor whose employees deal with any kind of chemical, then you're going to be part of these efforts soon, if you aren't already. Here's what you should know: Health Hazards There is simply no way to ignore any longer the health dangers from asphalt, coal tars, solvents, and so on. Bodily contact with—and fumes from—these substances can cause serious health problems,