A permit shield, as described in 40 CFR 70.6(f) and LAC 33:III.507.I, provides an “enforcement shield” which protects the facility from enforcement action for violations of applicable federal requirements. This is intended to protect the facility from liability for violations if the permit does not accurately reflect an applicable federal requirement.
A permit shield is strictly limited to:
1) Applicability (i.e., non-applicability) determinations of standards and requirements under:
2) Interpretations regarding frequency of and procedures for monitoring, recordkeeping, and reporting provisions of federally applicable requirements.
3) Interpretations regarding appropriate means of compliance when more that one federal requirement applies to the same emissions unit at a source.
Other important notes:
A request for a permit shield must be very specific. The application should outline all applicable federal requirements and set out the proposed terms and conditions to be followed in order to demonstrate compliance with each of the identified standards.
For example, if a source seeks a determination that a potentially applicable regulation does not apply, the application should explain why the source is not subject to that regulation (e.g., by demonstrating how their process does not conform to a specific definition).
Although the LDEQ’s decision to grant or deny a permit shield is a situation-specific case by case determination, a request for a permit shield will be given additional consideration under the following circumstances:
LDEQ does not intend to establish a permit shield for straightforward applicability determinations similar to those below. Such information will appear in Section XI of a Title V permit – Explanation for Exemption Status of Non-applicability of a Source.
EQT 001 is not subject to the requirements of 40 CFR 60 Subpart Dc because the boiler was constructed before June 9, 1989, and has a design heat input capacity greater than 100 MM Btu/hr [40 CFR 60.40c].
EQT002 is not subject to the requirements of 40 CFR 60 Subpart Kb because the capacity of the tank is less than 75 cubic meters [40 CFR 60.110b(a)].