MASON CHAMBERLAIN, INC.
MISSISSIPPI ARMY AMMUNITION PLANT, STENNIS SPACE CENTER, MS 39529
Having inspection records is common for businesses in regulated industries. Data and methodology
Inspection records
Oct 18, 1989#101397107Oct 18, 1989Complaint (B) · Partial scope, Health#101397107$00 viol.0 violations$0 in penalties
Inspection #101397107
Dates
- Opened
- Oct 18, 1989
- Closing Conference Date
- Oct 19, 1989
- Closed
- Feb 26, 1992
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- Yes
- Number of Employees
- 1,750
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- Mississippi Army Ammunition Plant, Stennis Space Center, MS 39529
- Industry
- Not classified in OSHA's inspection record.
Complaint Inspection: This inspection record is categorized as a complaint inspection in the DOL OSHA enforcement data. OSHA can open complaint-driven inspections after receiving safety or health complaints from workers or their representatives.
Aug 17, 1989#101397032Aug 17, 1989Complaint (B) · Partial scope, Health#101397032$00 viol.0 violations$0 in penalties
Inspection #101397032
Dates
- Opened
- Aug 17, 1989
- Closing Conference Date
- Aug 31, 1989
- Closed
- Sep 27, 1989
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 1,750
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- Mississippi Army Ammunition Plant, Stennis Space Center, MS 39529
- Industry
- Not classified in OSHA's inspection record.
Complaint Inspection: This inspection record is categorized as a complaint inspection in the DOL OSHA enforcement data. OSHA can open complaint-driven inspections after receiving safety or health complaints from workers or their representatives.
Aug 17, 1989#101395549Aug 17, 1989Referral (C) · Partial scope, Health#101395549$2,0002 viol.2 violations$2,000 in penalties
Inspection #101395549
Dates
- Opened
- Aug 17, 1989
- Closing Conference Date
- Aug 17, 1989
- Contested
- Feb 26, 1990
- Closed
- Oct 24, 1990
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- Yes
- Number of Employees
- 1,750
- Related Activity
- 1 referral
Violations and Penalties
- Total Violations
- 2
- Violation Types
- 2 willful
- Initial Penalties
- $2,000
- Penalties on Record
- $2,000
- Site Address
- Mississippi Army Ammunition Plant, Stennis Space Center, MS 39529
- Industry
- Not classified in OSHA's inspection record.
Referral Inspection: This inspection record is categorized as a referral inspection in the DOL OSHA enforcement data. Referral inspections can result from another agency, another OSHA activity, or another source referring a potential hazard to OSHA.
Violations
Violation list (2 of 2 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1904.2 Partial Exemption for Establishments in Certain Industries OSHA citation code: 19040002 A | Willful | 1 | 1 | $1,000 | $1,000 | Mar 15, 1990 | Feb 26, 1990 | - |
| 01002 | 1904.4 Recording Criteria | Willful | 1 | 175 | $1,000 | $1,000 | May 15, 1990 | Feb 26, 1990 | - |
May 12, 1989#101391308May 12, 1989Complaint (B) · Partial scope, Health#101391308$00 viol.0 violations$0 in penalties
Inspection #101391308
Dates
- Opened
- May 12, 1989
- Closing Conference Date
- May 12, 1989
- Closed
- May 23, 1989
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- Yes
- Number of Employees
- 1,750
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- Mississippi Army Ammunition Plant, Stennis Space Center, MS 39529
- Industry
- Not classified in OSHA's inspection record.
Complaint Inspection: This inspection record is categorized as a complaint inspection in the DOL OSHA enforcement data. OSHA can open complaint-driven inspections after receiving safety or health complaints from workers or their representatives.
Sep 20, 1988#18029504Sep 20, 1988Complaint (B) · Partial scope, Safety#18029504$4502 viol.2 violations$450 in penalties
Inspection #18029504
Dates
- Opened
- Sep 20, 1988
- Closing Conference Date
- Dec 7, 1988
- Contested
- Mar 29, 1989
- Final Order
- Oct 24, 1989
- Closed
- Nov 14, 1989
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- Yes
- Number of Employees
- 300
- Related Activity
- 2 complaints
Violations and Penalties
- Total Violations
- 2
- Violation Types
- 1 serious, 1 other-than-serious
- Initial Penalties
- $450
- Penalties on Record
- $450
- Site Address
- Mississippi Army Ammunition Plant, Stennis Space Center, MS 39529
- Industry
- Not classified in OSHA's inspection record.
Complaint Inspection: This inspection record is categorized as a complaint inspection in the DOL OSHA enforcement data. OSHA can open complaint-driven inspections after receiving safety or health complaints from workers or their representatives.
Violations
Violation list (2 of 2 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01004 | 1910.305 Electrical - Wiring Methods, Components, and Equipment OSHA citation code: 19100305 J04 IIB | Serious | 1 | 13 | $450 | $450 | Mar 12, 1989 | Mar 29, 1989 | Oct 24, 1989 |
| 02001 | 1910.22 Walking-Working Surfaces - General Requirements OSHA citation code: 19100022 A01 | Other | 1 | 14 | $0 | $0 | Mar 12, 1989 | - | Oct 24, 1989 |
Penalty amounts may differ from final amounts after settlement or judicial review. How to read these records
About these records
A company page groups inspections with the same normalized employer name, city and state; it is not a legal-entity identifier (how pages are grouped).
This page displays public OSHA enforcement data. Status text follows the DOL inspection record first and may include citation-level context when the inspection feed and citation records are out of sync. Penalty amounts shown reflect the latest penalty amounts on record in the DOL database and may differ from initial assessments or final amounts. This is not an official OSHA resource.
OSHA's public enforcement data does not publish a "guilty" or "not guilty" field for inspections. The closest outcome fields available are the citation counts, penalty amounts, contest dates, final-order dates, and the inspection close date shown on this page. How to interpret these status fields. How initial and current penalties are recorded.
OSHA may publish multiple citation rows in the same inspection with the same standard and penalty fields. Separate rows can still differ in OSHA metadata such as citation identifier, recorded instance count, exposed workers, or gravity value. Contest and Final Order columns show citation-level dates from OSHA's enforcement record. A dash means OSHA's record does not currently show that activity for the citation.
Understanding These Penalties
The maximum penalty for a serious violation in 2025 is $16,550 per violation. For willful violations, the range is $11,823 to $165,514. The current penalty column shows the latest amount on record in OSHA's database for each citation. When the current penalty differs from the initial penalty, OSHA's records show that the amount changed during the enforcement process, but this page does not determine the specific reason for each change. Penalty amounts are set by OSHA and adjusted annually for inflation.
5 inspections, 1988 to 1989. Each row is one inspection; point at or tap a row for its dates and totals.
Source: DOL OSHA enforcement data (inspections and violations), linked via activity_nr (exact government key).
Penalty changes: Amounts shown reflect what OSHA's enforcement record publishes. The reason for any change is not stated unless OSHA's record explicitly says so.
Short cases: When a case closed soon after it opened, the closed marker is drawn slightly to the right so both markers stay visible. Each row's card shows the exact dates.