Option Explicit
Sub Test()
Dim Lig&, DerL&
DerL = Feuil2.Range("B" & Rows.Count).End(3).Row
Feuil2.Range("A1:B" & DerL).ClearContents
For Lig = 2 To Feuil1.Range("A" & Rows.Count).End(3).Row
If Feuil1.Cells(Lig, 2) = "OK" Then
Feuil1.Rows(Lig).Copy Feuil2.Range("A" & DerL)
DerL = DerL + 1
End If
Next
End Sub