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Closed Recommendations
| P-01-01 | South Riding - Damage Prevention; CAA | Jun 22, 2001 |
| P-02-01 | Chalk Point - Pipeline Technology (Wrinkle Bends); CAA | Aug 2, 2002 |
| P-02-02 | Chalk Point - Damage Prevention; CAA | Oct 11, 2002 |
| P-02-04 | Bellingham - Pipeline Technology (Relief Valve); CAA | Oct 11, 2002 |
| P-02-05 | Bellingham - Pipeline Technology (SCADA); CAA | Oct 11, 2002 |
| P-03-01 | Carlsbad - Pipeline Technology (Internal Corrosion); CAA | Feb 27, 2003 |
| P-03-02 | Carlsbad - Integrity Management; CAA | Feb 27, 2003 |
| P-03-03 | Carlsbad - Pipeline Technology (Internal Corrosion); CAA | Feb 27, 2003 |
| P-04-07 | Glenpool - Emergency Resopnse; CAAA | Nov 4, 2004 |
| P-04-08 | CAAA | Nov 4, 2004 |
| P-07-01 | Emergency Response - CAA | Jun 7, 2007 |
| P-90-29 | Damage Prevention; CAA | Oct 1, 1990 |
| P-98-25 | Tiger Pass - Damage Prevention; CAAA | Oct 16, 1998 |
| P-98-30 | Reedy River - Fatique (Controller Shifts); CAAA | Nov 18, 1998 |