Authority: IC 13-14-8; IC 13-17-3-4; IC 13-17-3-11

Affected: IC 13-14-4-3; IC 13-15; IC 13-17

Sec. 8. (a) This section applies to the operation and maintenance of CEMS and COMS.

(b) The owner or operator of a CEMS or COMS required by federal or state regulations or permit shall:

1. (1) install;
2. (2) calibrate;
3. (3) maintain;
4. (4) operate; and
5. (5) certify;

such CEMS or COMS, and related equipment in accordance with applicable federal regulations, this rule, and any applicable permits.

(c) Except for periods when the:

1. (1) affected emissions unit is not operating;
2. (2) affected source or emissions unit is operating under a scenario that does not require CEMS or COMS;
3. (3) the owner or operator is repairing the CEMS or COMS;
4. (4) CEMS or COMS is experiencing a malfunction; or

5. (5) owner/operator is conducting CEMS or COMS quality assurance and quality control activities, including, but not limited to:

   1. (A) calibration checks;
   2. (B) zero and span adjustments;
   3. (C) calibration gas audits; or
   4. (D) other required quality assurance/quality control activities;

all CEMS and COMS shall be in continuous operation.

(d) Except as otherwise provided by a rule or provided specifically in a permit, if a CEMS or COMS is malfunctioning or will be down for calibration, maintenance, or repairs for a period of twenty-four (24) hours or more, the owner or operator of the CEMS or COMS shall perform supplemental monitoring in accordance with the permit.

(e) The owner or operator of the CEMS or COMS shall do the following:

1. (1) Keep records:

   1. (A) in accordance with section 6(b) of this rule; and
   2. (B) that describe the supplemental monitoring implemented during any downtime to assure compliance with applicable emission limitations.
2. (2) Submit reports, as applicable, in accordance with section 7 of this rule.

(Air Pollution Control Division; 326 IAC 3-5-8; filed Aug 11, 2011, 1:54 p.m.: 20110907-IR-326050330FRA; readopted filed Oct 18, 2024, 2:09 p.m.: 20241113-IR-326230809RFA)