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Proposed Throughput Thresholds:
nThroughput thresholds in rule used to define:
¨affected sources (ex: plants vs. terminals)
¨level of controls required
¨
nOnce Over A Throughput Threshold
¨Proposing once over any threshold then must comply, even if later going below threshold.
¨
nMonthly Throughput Definitions
¨Proposing to clarify in the rule text how to calculate throughputs
¨Proposing to simplify and specify GDF throughput calculation.. 
¨ sum of: current day + previous 364 days throughput, divided by 12
n