On 2003-10-25 06:21:05 -0700, (null) said:

If this pilot were to call in to request a landing would the controller
be obligated to report this? I know where to find the regs governing
pilots but don't think my AIM/FAR manual has the controller's regs.

The controller will handle it in accordance with the usual rules for the conditions that exist - VFR or SFVR. It's up to the pilot to adhere to the minimum visibility and cloud clearance requirements. Controllers are not cops.