Doug Miller wrote:
In article , dpb
wrote:
AFAIK the arrangement is not condoned by NEC; where specifically it
says it except under the workmanship clause I've no idea since it's
patently silly as two wires of smaller size are more costly than the
one larger.

Right he

"... conductors of size 1/0 AWG or larger ... shall be permitted to be
connected in parallel..." [2008 NEC, Article 310.4(A)]

Anything smaller than 1/0 AWG is not allowed to be run parallel.

I once asked a college English teacher how he could smoke in the classroom
when there was a sign over the door reading "No Smoking Permitted by order
of the Campus Fire Marshall."

He rudely informed me that if I didn't want to smoke, I could remain in the
room.

He would say the bit you quoted says nothing about anything smaller than
1/0.