Does a runway have to be closed for not having markings due to resealing work?
Not Necessarily

While some regulations or guidance material may call for some or most runways to be closed during maintenance or construction work, such as marking removal for asphalt reseal, this is certainly not always the case.

If markings are non-standard, faded, or removed, for any reason, the condition should be documented in a Notice to Airman (NOTAM) so that pilots and other interested parties will be aware of the condition and prepared for the non-standard situation.

An example of such a NOTAM includes this one from Randolph AFB (KRND), where some markings on runway 14L/32R are missing dues to removal and repaint during maintenance or construction work.


  RWY 14L/32R SURFACE MARKINGS NON STD ; SOME MARKINGS MISSING DUE  TO
  REMOVAL AND REPAINT.


Note that runway 14L/32R is not closed during this work. However, the parallel runway, 14R/32L, is closed:


  RWY 14R/32L CLOSED