ソースくれないから自分で調べたわ

https://www.isu.org/inside-isu/isu-communications/communications-archives/21211-2254-s-p-levels-of-difficulty-and-guidelines-for-marking-goe-2019-20/file

Program Components
If a program contains a Fall or a Serious error, the maximum scores are listed below:
Skating Skills, Transitions, Composition: Maximum score 9.75.
Performance and Interpretation: Maximum score 9.50.
If a program contains Falls or Serious errors, the maximum scores are listed below:
Skating Skills, Transitions, Composition: Maximum score 9.25.
Performance and Interpretation: Maximum score 8.75.
Serious errors are interruptions during the program and technical mistakes that impact the
integrity/continuity/fluidity of the composition and/or its relation to the music.
Similar limitations must be applied to all levels of skaters from extremely poor to outstanding.