Combine Into 1 Query

I'd appreciate any ideas on how to combine the following code into 1 query, without "If ... Then ... Else":
If Now() >= TransitionStartDate And Now() <= TransitionEndDate Then
DoCmd.RunSQL "SELECT [Contractors Trained Query].LastName, [Contractors Trained Query].FirstName, [Contractors Trained Query].CompanyName FROM [Contractors Trained Query] WHERE [Employees Trained List].[This Years Training Date] Is Not Null OR [Employees Trained List].[Last Years Training Date] Is Not Null ORDER BY [Contractors Trained Query].LastName;”
Else
DoCmd.RunSQL "SELECT [Contractors Trained Query].LastName, [Contractors Trained Query].FirstName, [Contractors Trained Query].CompanyName FROM [Contractors Trained Query] WHERE [Employees Trained List].[This Years Training Date] Is Not Null ORDER BY [Contractors Trained Query].LastName;”
End If

Thanks ....