Jigging Iron for Salmon in River

From page 14 of the Freshwater Sport Fishing Regulations https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=76652&inline=1:

2.10. HOOK AND WEIGHT RESTRICTIONS.
2. It is unlawful to use any hook which is directly or indirectly attached closer than 18 inches to any weight exceeding 1/2 ounce.
3. It is unlawful to use any multiple hook or more than one single hook on non-buoyant lures exceeding one ounce.

So this means irons must be less than 1/2 ounce, right?

I thought it was 1oz lure max for salmon/steelhead in rivers...

I thought it was 1oz lure max for salmon/steelhead in rivers...

I thought so too.

2.10. HOOK AND WEIGHT RESTRICTIONS.
2. It is unlawful to use any hook which is directly or indirectly attached closer than 18 inches to any weight exceeding 1/2 ounce.
3. It is unlawful to use any multiple hook or more than one single hook on non-buoyant lures exceeding one ounce.

Me too!
They change it? Whoops....

1.61. NON-BUOYANT LURE.
Any lure that sinks in freshwater.
.........................
1.93. WEIGHT
Any object directly or indirectly attached to a fishing line with the purpose of casting or sinking a lure or bait.

So a weight is not the same as a lure.  A lure is a lure, a weight is a weight.

2.10. HOOK AND WEIGHT RESTRICTIONS.
(a) Definition of Gap: For the purposes of this section, “gap” means the distance measured from the point of a hook to the shank.
(b) Maximum Gaps and Gear Rigging for Rivers and Streams unless otherwise provided (does not apply to lakes and reservoirs, the Sacramento-San Joaquin Delta (see Section 1.71 for definition of the Delta), and the Colorado River).
1. No person shall use any single hook with a gap greater than 1 inch or any multiple hook with a gap greater than 3/4 inch.
2. It is unlawful to use any hook which is directly or indirectly attached closer than 18 inches to any weight exceeding 1/2 ounce.
3. It is unlawful to use any multiple hook or more than one single hook on non-buoyant lures exceeding one ounce.
4. It is unlawful to use any weight directly attached below a hook.

So you're allowed to:
1. Use jigs larger than 1oz in the delta, no specific restrictions.
2. Use jigs up to 1oz with multiple hooks, anywhere.
3. Use jigs above 1oz with single hooks, anywhere.

Also, don't fish a jig like an idiot or you'll snag fish.  Fish it like a jig.  Short pops, flutter down.

Not huge, sweeping hooksets, what fish would bite that?

Feather River salmon?
Jk. Wrong board.

From page 14 of the Freshwater Sport Fishing Regulations https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=76652&inline=1:

2.10. HOOK AND WEIGHT RESTRICTIONS.
2. It is unlawful to use any hook which is directly or indirectly attached closer than 18 inches to any weight exceeding 1/2 ounce.
3. It is unlawful to use any multiple hook or more than one single hook on non-buoyant lures exceeding one ounce.

So this means irons must be less than 1/2 ounce, right?

I believe you're referring to #2 which is applying to a Drop Shot/Surf or Carolina/Sinker Slider rig.  When you're thinking about the 1/2 oz rule it doesn't apply for jigs.  Because if it did then #3 would be irrelevant.  So how I read it is that #3 applies to jigs.  Also, take note what Bmb 2.0 posted (see the yellow highlighted area). 

1.61. NON-BUOYANT LURE.
Any lure that sinks in freshwater.
.........................
1.93. WEIGHT
Any object directly or indirectly attached to a fishing line with the purpose of casting or sinking a lure or bait.

So a weight is not the same as a lure.  A lure is a lure, a weight is a weight.

2.10. HOOK AND WEIGHT RESTRICTIONS.
(a) Definition of Gap: For the purposes of this section, “gap” means the distance measured from the point of a hook to the shank.
(b) Maximum Gaps and Gear Rigging for Rivers and Streams unless otherwise provided (does not apply to lakes and reservoirs, the Sacramento-San Joaquin Delta (see Section 1.71 for definition of the Delta), and the Colorado River).
1. No person shall use any single hook with a gap greater than 1 inch or any multiple hook with a gap greater than 3/4 inch.
2. It is unlawful to use any hook which is directly or indirectly attached closer than 18 inches to any weight exceeding 1/2 ounce.
3. It is unlawful to use any multiple hook or more than one single hook on non-buoyant lures exceeding one ounce.
4. It is unlawful to use any weight directly attached below a hook.

So that means if your using a jig (non-buoyant lure) over 1 oz the treble hook doesn't apply in these area below (see 1.71).  Any place beyond this the single (si-wash) hook applies to a non-buoyant lure over 1 oz.   

1.71. SACRAMENTO-SAN JOAQUIN RIVER DELTA.
The Sacramento-San Joaquin River Delta includes all rivers, sloughs, canals, cuts, forebays, and flooded islands within the area south of Interstate 80 to its junction with Highway 50, and south of Highway 50 via the Pioneer Bridge to its junction with Highway 99, west of Highway 99, north of Interstate 580, 205, and Highway 120, and east of Interstate 680.


https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=76652&inline=1