Sub Verif()
Dim sh As Worksheet
Dim t()
Dim i&
Set sh = ThisWorkbook.Sheets(1)
t = sh.UsedRange.Value
sh.UsedRange.Font.ColorIndex = xlAutomatic
For i = LBound(t) + 1 To UBound(t)
If Not IsNumeric(t(i, 4)) Or Not Len(t(i, 4)) = 2 Then sh.Cells(i, 4).Font.Color = vbRed
If Not IsNumeric(t(i, 5)) Or Not Len(t(i, 5)) = 13 Then sh.Cells(i, 5).Font.Color = vbRed
Next i
End Sub