ALARA, in practice, has been interpreted by the NRC as to mean "radiation levels as low as can be achievable while still being competitive with alternative energy sources." Which means that the cost of nuclear goes up until it matches or exceeds traditional baseloads (coal, gas, etc.).
https://www.nrc.gov/docs/ML1610/ML16105A136.pdf
ALARA, in practice, has been interpreted by the NRC as to mean "radiation levels as low as can be achievable while still being competitive with alternative energy sources." Which means that the cost of nuclear goes up until it matches or exceeds traditional baseloads (coal, gas, etc.).