Dear All,

In what relates to internally illuminated signage, according to Guide’s Setp by Step, compliance with this credit can be evaluated by means of:

  1. measurement of the sign’s maximum luminance, or
  2. simulation through a calculation software.

We are evaluating the possibility of using the measurement method (point 1. above). In this case, does this measurement need to be performed by an independent/certified entity? In any case, could you please clarify if there are any requirements related with the measurement procedure?

Thank you in advance,