Premise: Based on these timelines, it is estimated that, in principle, the mercury controls needed to comply with a multipollutant strategy can be met provided that (1) an adequate supply of materials and labor is available and (2) the control technology implementation process begins at least 16 months prior to the date controls must be in place.

Hypothesis: The mercury controls can only be manufactured during the specified timeline if certain conditions and costs are met.
Relation: neutral