For the plant state of "Beyond design basis accidents - severe accidents":

The specific provisions may vary depending on the accident (which may be a design-basis accident or beyond-design-basis accident, including a severe accident).

A design feature from the design basis envelope that can be used to cope with beyond design basis accidents, including severe accidents.

updating selected design-basis and beyond-design-basis requirements and expectations, including those for (action A.9.1):

For the plant state of "Beyond design basis accidents - no or limited core damage":

considerations of magnitudes of design-basis and beyond-design-basis external hazards are consistent with current best international practices (action 2.1)

operation of the system and its expected performance (including under beyond-design conditions, if important)

operation of the system and its expected performance (including under beyond-design conditions, if important)

Provides additional tools and mechanisms to mitigate the effects of Beyond Design Basis Accidents (BDBAs), including severe accidents, which are considered even more unlikely than Design Basis Accidents.

Levels 4 and 5 (the 4th and 5th circles) represent Beyond Design Basis Accidents (BDBAs), including Severe Accidents.

1.9.1 An evaluation of the habitability of control facilities under conditions arising from beyond-design-basis and severe accidents.

Methods and systems of managing a network can be used in which physical components may be provisioned or de-provisioned without having to manually reconfigure a logical instrument.

1.9.1 An evaluation of the habitability of control facilities under conditions arising from beyond-design-basis and severe accidents.

A beyond-design-basis earthquake (BDBE) shall be identified that meets the requirements for identification of DECs as described in section 7.3.4.

It is however unclear if additional or different competencies are required to handle beyond design basis situations.