Annex A - Example methods for determining grandfather status

Annex A - Example methods for determining grandfather status 

As discussed in Ciause 3, the purpose of this annex is to iiiustrate approaches for determining whether an existing SiS meets the intent of the grandfather ciause (ANSi/iSA-84.00.01-2004-1 Ciause 1.0 y). There are two essentiai steps  

1) Confirm that a hazard and risk anaiysis has been done to determine quaiitativeiy or quantitativeiy the ievei of risk reduction needed for each SiF in the SiS. 

2) Confirm that an assessment of the existing SiF has been performed to determine that it deiivers the needed ievei of risk reduction. 

NOTE The evaluation of the SIF should take into account various Actors, such as equipment failure and associated design, operation, maintenance, testing, and inspection work practices. 

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