---
kind: "section"
citation: "40 C.F.R. § 60.402"
title: "40"
number: "60.402"
heading: "Standard for particulate matter."
url: "https://uscodex.org/cfr/40/60.402"
---

# §60.402. Standard for particulate matter.

- (a) On and after the date on which the performance test required to be conducted by [§ 60.8](/cfr/40/60.8.md) is completed, no owner or operator subject to the provisions of this subpart shall cause to be discharged into the atmosphere:
  - (1) **From any phosphate rock dryer any gases which—**
    - (i) Contain particulate matter in excess of 0.030 kilogram per megagram of phosphate rock feed (0.06 lb/ton), or
    - (ii) **Exhibit greater than 10-percent opacity.**
  - (2) From any phosphate rock calciner processing unbeneficiated rock or blends of beneficiated and unbeneficiated rock, any gases which:
    - (i) Contain particulate matter in excess of 0.12 kilogram per megagram of phosphate rock feed (0.23 lb/ton), or
    - (ii) **Exhibit greater than 10-percent opacity.**
  - (3) **From any phosphate rock calciner processing beneficiated rock any gases which—**
    - (i) Contain particulate matter in excess of 0.055 kilogram per megagram of phosphate rock feed (0.11 lb/ton), or
    - (ii) **Exhibit greater than 10-percent opacity.**
  - (4) **From any phosphate rock grinder any gases which—**
    - (i) Contain particulate matter in excess of 0.006 kilogram per megagram of phosphate rock feed (0.012 lb/ton), or
    - (ii) **Exhibit greater than zero-percent opacity.**
  - (5) From any ground phosphate rock handling and storage system any gases which exhibit greater than zero-percent opacity.

## Notes

### Amendments

[47 FR 16589, Apr. 16, 1982, as amended at 65 FR 61760, Oct. 17, 2000]

### Source

Source: 47 FR 16589, Apr. 16, 1982, unless otherwise noted.

### Authority

Authority: 42 U.S.C. 7401 et seq.

### Source

Source: 36 FR 24877, Dec. 23, 1971, unless otherwise noted.

### Amendments

[47 FR 16589, Apr. 16, 1982, as amended at 65 FR 61760, Oct. 17, 2000]