GAW...
what back packer more specifically means is that ( as he says ) if the SEL rating has expired , then you will need to apply again to the licensing authority, and they will allocate you an FE who will conduct a flight test...
so if you rating has not expired and if you have the necessary to renew ' by proficiency' then hussel to your nearest FE and get signed up..or fall into he clutches of the 'examiner' again....