Maximum horizontal acceleration in lithified earth material

Maximum horizontal acceleration in lithified earth material means the maximum expected horizontal acceleration at the ground surface as depicted on a seismic hazard map, with a 98% or greater probability that the acceleration will not be exceeded in 50 years, or the maximum expected horizontal acceleration based on a site-specific seismic risk assessment.

Source

40 CFR § 257.53

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Scoping language

The following definitions apply to this subpart. Terms not defined in this section have the meaning given by RCRA.

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