Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Mon 4 Jan 1999 | Carmarthenshire | 2 | 1 | Serious |
| Mon 11 Jan 1999 | Carmarthenshire | 2 | 1 | Slight |
| Wed 13 Jan 1999 | Carmarthenshire | 1 | 1 | Serious |
| Wed 13 Jan 1999 | Carmarthenshire | 2 | 1 | Slight |
| Sun 24 Jan 1999 | Carmarthenshire | 2 | 1 | Serious |
| Mon 22 Feb 1999 | Carmarthenshire | 1 | 2 | Serious |
| Sat 27 Feb 1999 | Carmarthenshire | 2 | 1 | Slight |
| Sat 6 Mar 1999 | Carmarthenshire | 2 | 2 | Slight |
| Fri 19 Mar 1999 | Carmarthenshire | 3 | 1 | Serious |
| Mon 22 Mar 1999 | Carmarthenshire | 2 | 2 | Slight |
| Thu 25 Mar 1999 | Carmarthenshire | 2 | 1 | Slight |
| Sat 3 Apr 1999 | Carmarthenshire | 2 | 1 | Slight |
| Thu 8 Apr 1999 | Carmarthenshire | 1 | 2 | Slight |
| Fri 16 Apr 1999 | Carmarthenshire | 3 | 1 | Slight |
| Sun 18 Apr 1999 | Carmarthenshire | 2 | 1 | Slight |
| Mon 3 May 1999 | Carmarthenshire | 2 | 1 | Slight |
| Sun 16 May 1999 | Carmarthenshire | 1 | 1 | Fatal |
| Mon 24 May 1999 | Carmarthenshire | 3 | 1 | Slight |
| Tue 1 Jun 1999 | Carmarthenshire | 3 | 4 | Serious |
| Fri 4 Jun 1999 | Carmarthenshire | 2 | 1 | Serious |
| Sat 5 Jun 1999 | Carmarthenshire | 2 | 1 | Slight |
| Tue 6 Jul 1999 | Carmarthenshire | 2 | 2 | Slight |
| Sat 17 Jul 1999 | Carmarthenshire | 2 | 1 | Slight |
| Sun 18 Jul 1999 | Carmarthenshire | 2 | 4 | Serious |
| Sat 24 Jul 1999 | Carmarthenshire | 2 | 1 | Slight |
| Tue 27 Jul 1999 | Carmarthenshire | 2 | 1 | Slight |
| Wed 4 Aug 1999 | Carmarthenshire | 2 | 2 | Slight |
| Fri 13 Aug 1999 | Carmarthenshire | 1 | 1 | Slight |
| Sat 28 Aug 1999 | Carmarthenshire | 2 | 1 | Serious |
| Sun 29 Aug 1999 | Carmarthenshire | 2 | 1 | Slight |
| Mon 30 Aug 1999 | Carmarthenshire | 2 | 2 | Serious |
| Fri 17 Sep 1999 | Carmarthenshire | 2 | 1 | Serious |
| Sat 18 Sep 1999 | Carmarthenshire | 2 | 1 | Serious |
| Sun 26 Sep 1999 | Carmarthenshire | 1 | 1 | Serious |
| Mon 27 Sep 1999 | Carmarthenshire | 3 | 2 | Slight |
| Thu 7 Oct 1999 | Carmarthenshire | 2 | 6 | Slight |
| Sun 24 Oct 1999 | Carmarthenshire | 2 | 1 | Slight |
| Fri 5 Nov 1999 | Carmarthenshire | 2 | 1 | Slight |
| Tue 9 Nov 1999 | Carmarthenshire | 2 | 1 | Slight |
| Sun 28 Nov 1999 | Carmarthenshire | 3 | 1 | Slight |
| Sun 28 Nov 1999 | Carmarthenshire | 1 | 2 | Slight |
| Mon 20 Dec 1999 | Carmarthenshire | 3 | 1 | Slight |
| Tue 21 Dec 1999 | Carmarthenshire | 3 | 1 | Slight |