Title 29

PART 1926 APPENDIX A

(Non-mandatory) Appendix A to Subpart L of Part 1926 - Scaffold Specifications

29:8.1.1.1.1.12.19.6.1 : Appendix A

(Non-mandatory) Appendix A to Subpart L of Part 1926 - Scaffold Specifications

This appendix provides non-mandatory guidelines to assist employers in complying with the requirements of subpart L of this part. An employer may use these guidelines and tables as a starting point for designing scaffold systems. However, the guidelines do not provide all the information necessary to build a complete system, and the employer is still responsible for designing and assembling these components in such a way that the completed system will meet the requirements of § 1926.451(a). Scaffold components which are not selected and loaded in accordance with this Appendix, and components for which no specific guidelines or tables are given in this appendix (e.g., joints, ties, components for wood pole scaffolds more than 60 feet in height, components for heavy-duty horse scaffolds, components made with other materials, and components with other dimensions, etc.) must be designed and constructed in accordance with the capacity requirements of § 1926.451(a), and loaded in accordance with § 1926.451(d)(1).

Index to appendix A for Subpart L

1. General guidelines and tables.

2. Specific guidelines and tables.

(a) Pole scaffolds:

Single-pole wood pole scaffolds.

Independent wood pole scaffolds.

(b) Tube and coupler scaffolds.

(d) Plasterers', decorators' and large area scaffolds.

(e) Bricklayers' square scaffolds.

(f) Horse scaffolds.

(g) Form scaffolds and carpenters' bracket scaffolds.

(h) Roof bracket scaffolds.

(i) Outrigger scaffolds (one level).

(j) Pump jack scaffolds.

(k) Ladder jack scaffolds.

(l) Window jack scaffolds.

(m) Crawling boards (chicken ladders).

(n) Step, platform and trestle ladder scaffolds.

(o) Single-point adjustable suspension scaffolds.

(p) Two-point adjustable suspension scaffolds.

(q)(1) Stonesetters' multi-point adjustable suspension scaffolds.

(2) Masons' multi-point adjustable suspension scaffolds.

(r) Catenary scaffolds.

(s) Float (ship) scaffolds.

(t) Interior hung scaffolds.

(u) Needle beam scaffolds.

(v) Multi-level suspension scaffolds.

(w) Mobile scaffolds.

(x) Repair bracket scaffolds.

(y) Stilts.

(z) Tank builders' scaffolds.

1. General Guidelines and Tables

(a) The following tables, and the tables in part 2 - Specific guidelines and tables, assume that all load-carrying timber members (except planks) of the scaffold are a minimum of 1,500 lb-f/in 2 (stress grade) construction grade lumber. All dimensions are nominal sizes as provided in the American Softwood Lumber Standards, dated January 1970, except that, where rough sizes are noted, only rough or undressed lumber of the size specified will satisfy minimum requirements.

(b) Solid sawn wood used as scaffold planks shall be selected for such use following the grading rules established by a recognized lumber grading association or by an independent lumber grading inspection agency. Such planks shall be identified by the grade stamp of such association or agency. The association or agency and the grading rules under which the wood is graded shall be certified by the Board of Review, American Lumber Standard Committee, as set forth in the American Softwood Lumber Standard of the U.S. Department of Commerce.

(i) Allowable spans shall be determined in compliance with the National Design Specification for Wood Construction published by the National Forest Products Association; paragraph 5 of ANSI A10.8-1988 Scaffolding-Safety Requirements published by the American National Standards Institute; or for 2 × 10 inch (nominal) or 2 × 9 inch (rough) solid sawn wood planks, as shown in the following table:

Maximum intended nominal load (lb/ft ²)	Maximum permissible span using full thickness undressed lumber (ft)	Maximum permissible span using nominal thickness lumber (ft)
25	10	8
50	8	6
75	6

(ii) The maximum permissible span for 1 1/4 × 9-inch or wider wood plank of full thickness with a maximum intended load of 50 lb/ft. 2 shall be 4 feet.

(c) Fabricated planks and platforms may be used in lieu of solid sawn wood planks. Maximum spans for such units shall be as recommended by the manufacturer based on the maximum intended load being calculated as follows:

Platform units used to make scaffold platforms intended for light-duty use shall be capable of supporting at least 25 pounds per square foot applied uniformly over the entire unit-span area, or a 250-pound point load placed on the unit at the center of the span, whichever load produces the greater shear force.

1 inch × .070 inch wall steel tubing; or 1.990 inch × .058 inch wall aluminum tubing.

(e) Overhead protection shall consist of 2 inch nominal planking laid tight, or 3/4-inch plywood.

(f) Screen installed between toeboards and midrails or toprails shall consist of No. 18 gauge U.S. Standard wire one inch mesh.

Rated load capacity	Intended load
Light-duty	• 25 pounds per square foot applied uniformly over the entire span area.
Medium-duty	• 50 pounds per square foot applied uniformly over the entire span area.
Heavy-duty	• 75 pounds per square foot applied uniformly over the entire span area.
One-person	• 250 pounds placed at the center of the span (total 250 pounds).
Two-person	• 250 pounds placed 18 inches to the left and right of the center of the span (total 500 pounds).
Three-person	• 250 pounds placed at the center of the span and 250 pounds placed 18 inches to the left and right of the center of the span (total 750 pounds).

	Light duty up to 20 feet high	Light duty up to 60 feet high	Medium duty up to 60 feet high	Heavy duty up to 60 feet high
Maximum intended load (lbs/ft ²)	25	25	50	75
Poles or uprights	2 × 4 in	4 × 4 in	4 × 4 in	4 × 6 in.
Maximum pole spacing (longitudinal)	6 feet	10 feet	8 feet	6 feet
Maximum pole spacing (transverse)	5 feet	5 feet	5 feet	5 feet
Runners	1 × 4 in	1 1/4 × 9 in	2 × 10 in	2 × 10 in.
Bearers and maximum spacing of bearers:
3 feet	2 × 4 in	2 × 4 in	2 × 10 in. or 3 × 4 in	2 × 10 in. or 3 × 5 in.
5 feet	2 × 6 in. or 3 × 4 in	2 × 6 in. or 3 × 4 in. (rough)	2 × 10 in. or 3 × 4 in	2 × 10 in. or 3 × 5 in.
6 feet			2 × 10 in. or 3 × 4 in	2 × 10 in. or 3 × 5 in.
8 feet			2 × 10 in. or 3 × 4 in
Planking	1 1/4 × 9 in	2 × 10 in	2 × 10 in	2 × 10 in.
Maximum vertical spacing of horizontal members	7 feet	9 feet	7 feet	6 ft. 6 in.
Bracing horizontal	1 × 4 in	1 × 4 in	1 × 6 in. or 1 1/4 × 4 in	2 × 4 in.
Bracing diagonal	1 × 4 in	1 × 4 in	1 × 4 in	2 × 4 in.
Tie-ins	1 × 4 in	1 × 4 in	1 × 4 in	1 × 4 in.

	Light duty up to 20 feet high	Light duty up to 60 feet high	Medium duty up to 60 feet high	Heavy duty up to 60 feet high
Maximum intended load	25 lbs/ft ²	25 lbs/ft ²	50 lbs/ft ²	75 lbs/ft ².
Poles or uprights	2 × 4 in	4 × 4 in	4 × 4 in	4 × 4 in.
Maximum pole spacing (longitudinal)	6 feet	10 feet	8 feet	6 feet.
Maximum (transverse)	6 feet	10 feet	8 feet	8 feet.
Runners	1 1/4 × 4 in	1 1/4 × 9 in	2 × 10 in	2 × 10 in.
Bearers and maximum spacing of bearers:
3 feet	2 × 4 in	2 × 4 in	2 × 10 in	2 × 10 in. (rough).
6 feet	2 × 6 in. or 3 × 4 in	2 × 10 in. (rough) or 3 × 8 in	2 × 10 in	2 × 10 in. (rough).
8 feet	2 × 6 in. or 3 × 4 in	2 × 10 in. (rough) or 3 × 8 in	2 × 10 in
10 feet	2 × 6 in. or 3 × 4 in	2 × 10 in. (rough) or 3 × 3 in
Planking	1 1/4 × 9 in	2 × 10 in	2 × 10 in	2 × 10 in.
Maximum vertical spacing of horizontal members	7 feet	7 feet	6 feet	6 feet.
Bracing horizontal	1 × 4 in	1 × 4 in	1 × 6 in. or 1 1/4 × 4 in	2 × 4 in.
Bracing diagonal	1 × 4 in	1 × 4 in	1 × 4 in	2 × 4 in.
Tie-ins	1 × 4 in	1 × 4 in	1 × 4 in	1 × 4 in.

	Light duty	Medium duty	Heavy duty
Maximum intended load	25 lbs/ft ²	50 lbs/ft ²	75 lbs/ft ².
Posts, runners and braces	Nominal 2 in. (1.90 inches) OD steel tube or pipe	Nominal 2 in. (1.90 inches) OD steel tube or pipe	Nominal 2 in. (1.90 inches) OD steel tube or pipe.
Bearers	Nominal 2 in. (1.90 inches)	Nominal 2 in. (1.90 inches)	Nominal 2 1/2 in. (2.375 in.).
	OD steel tube or pipe and a maximum post spacing of 4 ft. × 10 ft.	OD steel tube or pipe and a maximum post spacing of 4 ft. × 7 ft. or	OD steel tube or pipe and a maximum post spacing of 6 ft. × 6 ft.
		Nominal 2 1/2 in. (2.375 in.)
		OD steel tube or pipe and a maximum post spacing of 6 ft. × 8 ft. *
Maximum runner spacing vertically	6 ft. 6 in	6 ft. 6 in	6 ft. 6 in.

	Maximum number of additional planked levels	Maximum height of scaffold (in feet)
Light duty	Medium duty	Heavy duty
Number of Working Levels:
1	16	11	6	125
2	11	1	0	125
3	6	0	0	125
4	1	0	0	125

(c) Fabricated frame scaffolds. Because of their prefabricated nature, no additional guidelines or tables for these scaffolds are being adopted in this Appendix.

(d) Plasterers', decorators', and large area scaffolds. The guidelines for pole scaffolds or tube and coupler scaffolds (Appendix A (a) and (b)) may be applied.

* The squares shall be set not more than 8 feet apart for light duty scaffolds and not more than 5 feet apart for medium duty scaffolds.

** Horses shall be spaced not more than 8 feet apart for light duty loads, and not more than 5 feet apart for medium duty loads.

(g) Form scaffolds and carpenters' bracket scaffolds. (1) Brackets shall consist of a triangular-shaped frame made of wood with a cross-section not less than 2 inches by 3 inches, or of 1 1/4 inch × 1 1/4 inch × 1/8 inch structural angle iron.

(2) Bolts used to attach brackets to structures shall not be less than 5/8 inches in diameter.

(4) No more than two employees shall occupy any given 8 feet of a bracket or form scaffold at any one time. Tools and materials shall not exceed 75 pounds in addition to the occupancy.

(i) Outrigger bearers shall consist of two pieces of 1 × 6 inch lumber nailed on opposite sides of the vertical support.

(ii) Bearers for wood figure-four brackets shall project not more than 3 feet 6 inches from the outside of the form support, and shall be braced and secured to prevent tipping or turning. The knee or angle brace shall intersect the bearer at least 3 feet from the form at an angle of approximately 45 degrees, and the lower end shall be nailed to a vertical support.

(i) Outrigger scaffolds (single level). No specific guidelines or tables are given.

(j) Pump jack scaffolds. Wood poles shall not exceed 30 feet in height. Maximum intended load - 500 lbs between poles; applied at the center of the span. Not more than two employees shall be on a pump jack scaffold at one time between any two supports. When 2 × 4's are spliced together to make a 4 × 4 inch wood pole, they shall be spliced with “10 penny” common nails no more than 12 inches center to center, staggered uniformly from the opposite outside edges.

(k) Ladder jack scaffolds. Maximum intended load - 25 lb/ft 2. However, not more than two employees shall occupy any platform at any one time. Maximum span between supports shall be 8 feet.

(l) Window jack scaffolds. Not more than one employee shall occupy a window jack scaffold at any one time.

(m) Crawling boards (chicken ladders). Crawling boards shall be not less than 10 inches wide and 1 inch thick, with cleats having a minimum 1 × 1 1/2 inch cross-sectional area. The cleats shall be equal in length to the width of the board and spaced at equal intervals not to exceed 24 inches.

(n) Step, platform, and trestle ladder scaffolds. No additional guidelines or tables are given.

(o) Single-point adjustable suspension scaffolds. Maximum intended load - 250 lbs. Wood seats for boatswains' chairs shall be not less than 1 inch thick if made of non-laminated wood, or 5/8 inches thick if made of marine quality plywood.

(p) Two-point adjustable suspension scaffolds. (1) In addition to direct connections to buildings (except window cleaners' anchors) acceptable ways to prevent scaffold sway include angulated roping and static lines. Angulated roping is a system of platform suspension in which the upper wire rope sheaves or suspension points are closer to the plane of the building face than the corresponding attachment points on the platform, thus causing the platform to press against the face of the building. Static lines are separate ropes secured at their top and bottom ends closer to the plane of the building face than the outermost edge of the platform. By drawing the static line taut, the platform is drawn against the face of the building.

(2) On suspension scaffolds designed for a working load of 500 pounds, no more than two employees shall be permitted on the scaffold at one time. On suspension scaffolds with a working load of 750 pounds, no more than three employees shall be permitted on the scaffold at one time.

(3) Ladder-type platforms. The side stringer shall be of clear straight-grained spruce. The rungs shall be of straight-grained oak, ash, or hickory, at least 1 1/8 inches in diameter, with 7/8 inch tenons mortised into the side stringers at least 7/8 inch. The stringers shall be tied together with tie rods not less than 1/4 inch in diameter, passing through the stringers and riveted up tight against washers on both ends. The flooring strips shall be spaced not more than 5/8 inch apart, except at the side rails where the space may be 1 inch. Ladder-type platforms shall be constructed in accordance with the following table:

(4) Plank-Type Platforms. Plank-type platforms shall be composed of not less than nominal 2 × 8 inch unspliced planks, connected together on the underside with cleats at intervals not exceeding 4 feet, starting 6 inches from each end. A bar or other effective means shall be securely fastened to the platform at each end to prevent the platform from slipping off the hanger. The span between hangers for plank-type platforms shall not exceed 10 feet.

(5) Beam-Type Platforms. Beam platforms shall have side stringers of lumber not less than 2 × 6 inches set on edge. The span between hangers shall not exceed 12 feet when beam platforms are used. The flooring shall be supported on 2 × 6 inch cross beams, laid flat and set into the upper edge of the stringers with a snug fit, at intervals of not more than 4 feet, securely nailed to the cross beams. Floor-boards shall not be spaced more than 1/2 inch apart.

(q)(1) Multi-point adjustable suspension scaffolds and stonesetters' multi-point adjustable suspension scaffolds. No specific guidelines or tables are given for these scaffolds.

(2) Masons' multi-point adjustable suspension scaffolds. Maximum intended load - 50 lb/ft 2. Each outrigger beam shall be at least a standard 7 inch, 15.3 pound steel I-beam, at least 15 feet long. Such beams shall not project more than 6 feet 6 inches beyond the bearing point. Where the overhang exceeds 6 feet 6 inches, outrigger beams shall be composed of stronger beams or multiple beams.

(5) Ropes shall be equivalent in strength to at least 1/2 inch (1.3 cm) diameter improved plow steel wire rope.

(2) Platforms shall be made of 3/4 inch plywood, equivalent in rating to American Plywood Association Grade B-B, Group I, Exterior.

(3) Bearers shall be made from 2 × 4 inch, or 1 × 10 inch rough lumber. They shall be free of knots and other flaws.

(4) Ropes shall be equivalent in strength to at least 1 inch (2.5 cm) diameter first grade manila rope.

(1) Ropes shall be attached to the needle beams by a scaffold hitch or an eye splice. The loose end of the rope shall be tied by a bowline knot or by a round turn and a half hitch.

(2) Ropes shall be equivalent in strength to at least 1 inch (2.5 cm) diameter first grade manila rope.

(v) Multi-level suspension scaffolds. No additional guidelines or tables are being given for these scaffolds.

(w) Mobile Scaffolds. Stability test as described in the ANSI A92 series documents, as appropriate for the type of scaffold, can be used to establish stability for the purpose of § 1926.452(w)(6).

(x) Repair bracket scaffolds. No additional guidelines or tables are being given for these scaffolds.

(z) Tank builder's scaffold. (1) The maximum distance between brackets to which scaffolding and guardrail supports are attached shall be no more than 10 feet 6 inches.

(2) Not more than three employees shall occupy a 10 feet 6 inch span of scaffold planking at any time.

(3) A taut wire or synthetic rope supported on the scaffold brackets shall be installed at the scaffold plank level between the innermost edge of the scaffold platform and the curved plate structure of the tank shell to serve as a safety line in lieu of an inner guardrail assembly where the space between the scaffold platform and the tank exceeds 12 inches (30.48 cm). In the event the open space on either side of the rope exceeds 12 inches (30.48 cm), a second wire or synthetic rope appropriately placed, or guardrails in accordance with § 1926.451(g)(4), shall be installed in order to reduce that open space to less than 12 inches (30.48 cm).

(4) Scaffold planks of rough full-dimensioned 2-inch (5.1 cm) × 12-inch (30.5 cm) Douglas Fir or Southern Yellow Pine of Select Structural Grade shall be used. Douglas Fir planks shall have a fiber stress of at least 1900 lb/in 2 (130,929 n/cm 2) and a modulus of elasticity of at least 1,900,000 lb/in 2 (130,929,000 n/cm 2), while Yellow Pine planks shall have a fiber stress of at least 2500 lb/in 2 (172,275 n/cm 2) and a modulus of elasticity of at least 2,000,000 lb/in 2 (137,820,000 n/cm 2).

(5) Guardrails shall be constructed of a taut wire or synthetic rope, and shall be supported by angle irons attached to brackets welded to the steel plates. These guardrails shall comply with § 1926.451(g)(4). Guardrail supports shall be located at no greater than 10 feet 6 inch intervals.

Length of Platform	12 feet	14 & 16 feet	18 & 20 feet.
Side stringers, minimum cross section (finished sizes):
At ends	1 3/4 × 2 3/4 in	1 3/4 × 2 3/4 in	1 3/4 × 3 in.
At middle	1 3/4 × 3 3/4 in	1 3/4 × 3 3/4 in	1 3/4 × 4 in.
Reinforcing strip (minimum)	A 1/8 × 7/8 inch steel reinforcing strip shall be attached to the side or underside, full length.
Rungs	Rungs shall be 1 1/8 inch minimum diameter with at least 7/8 inch in diameter tenons, and the maximum spacing shall be 12 inches to center.
Tie rods:
Number (minimum)	3	4	4
Diameter (minimum)	1/4 inch	1/4 inch	1/4 inch
Flooring, minimum finished size	1/2 × 2 3/4 in	1/2 × 2 3/4 in	1/2 × 2 3/4 in.

Length of Platform	22 & 24 ft	28 & 30 ft.
Side stringers, minimum cross section (finished sizes):
At ends	1 3/4 × 3 in	1 3/4 × 3 1/2 in.
At middle	1 3/4 × 4 1/4 in	1 3/4 × 5 in.
Reinforcing strip (minimum)	A 1/8 × 7/8-inch steel reinforcing strip shall be attached to the side or underside, full length.
Rungs	Rungs shall be 1 1/8 inch minimum diameter with at least 7/8 inch in diameter tenons, and the maximum spacing shall be 12 inches to center. Tie rods.
Number (minimum)	5	6.
Diameter (minimum)	1/4 in	1/4 in.
Flooring, minimum finished size	1/2 × 2 3/4 in	1/2 × 2 3/4 in.

Examples	Minutes
Example No. 1: 4 hours working period at 20 pounds gauge.
Decompression Table No. 1: 20 pounds for 4 hours, total decompression time	43
Decompression Table No. 2:
Stage 1: Reduce pressure from 20 pounds to 4 pounds at the uniform rate of 5 pounds per minute.
Elapsed time stage 1: 16/5	3
Stage 2 (final stage): Reduce pressure at a uniform rate from 4 pounds to 0-pound gage over a period of 40 minutes.
Rate - 0.10 pound per minute or 10 minutes per pound.
Stage 2 (final) elapsed time	40
Total time	43
Example No. 2: 5-hour working period at 24 pounds gage.
Decompression Table No. 1: 24 pounds for 5 hours, total decompression time	117
Decompression Table No. 2:
Stage 1: Reduce pressure from 24 pounds to 8 pounds at the uniform rate of 5 pounds per minute.
Elapsed time stage 1: 16/5	3
Stage 2: Reduce pressure at a uniform rate from 8 pounds to 4 pounds over a period of 4 minutes. Rate, 1 pound per minute elapsed time, stage 2	4
Transfer men to special decompression chamber maintaining the 4-pound pressure during the transfer operation.
Stage 3 (final stage): In the special decompression chamber, reduce the pressure at a uniform rate from 4 pounds to 0-pound gage over a period of 110 minutes. Rate, 0.037 pound per minute or 27.5 minutes per pound. Stage 3 (final) elapsed time	110
Total time	117

Work pressure p.s.i.g.	Working period hours
Work pressure p.s.i.g.	1/2	1	1 1/2	2	3	4	5	6	7	8	Over 8
9 to 12	3	3	3	3	3	3	3	3	3	3	3
14	6	6	6	6	6	6	6	6	16	16	33
16	7	7	7	7	7	7	17	33	48	48	62
18	7	7	7	8	11	17	48	63	63	73	87
20	7	7	8	15	15	43	63	73	83	103	113
22	9	9	16	24	38	68	93	103	113	128	133
24	11	12	23	27	52	92	117	122	127	137	151
26	13	14	29	34	69	104	126	141	142	142	163
28	15	23	31	41	98	127	143	153	153	165	183
30	17	28	38	62	105	143	165	168	178	188	204
32	19	35	43	85	126	163	178	193	203	213	226
34	21	39	58	98	151	178	195	218	223	233	248
36	24	44	63	113	170	198	223	233	243	253	273
38	28	49	73	128	178	203	223	238	253	263	278
40	31	49	84	143	183	213	233	248	258	278	288
42	37	56	102	144	189	215	245	260	263	268	293
44	43	64	118	154	199	234	254	264	269	269	293
46	44	74	139	171	214	244	269	274	289	299	318
48	51	89	144	189	229	269	299	309	319	319
50	58	94	164	209	249	279	309	329

Working period hours	Decompression data
	Stage No.	Pressure reduc. p.s.i.g.		Time in stage minutes	Pressure reduc. rate Min/pound	Total time decompress minutes
	Stage No.	From	To	Time in stage minutes	Pressure reduc. rate Min/pound	Total time decompress minutes
	4	4	0	130	32.50	309
6	1	50	34	3	0.20
	2	34	18	16	1.00
	3	18	4	180	12.85
	4	4	0	130	32.50	329

Title 29

PART 1926 APPENDIX A

(Non-mandatory) Appendix A to Subpart L of Part 1926 - Scaffold Specifications

29:8.1.1.1.1.12.19.6.1 : Appendix A

Appendix A to Subpart M of Part 1926 - Determining Roof Widths

29:8.1.1.1.1.13.19.5.6 : Appendix A

Appendix A to Subpart P of Part 1926 - Soil Classification

29:8.1.1.1.1.16.19.4.11 : Appendix A

Appendix A to Subpart Q of Part 1926 - References to subpart Q of Part 1926

29:8.1.1.1.1.17.19.8.17 : Appendix A

Appendix A to Subpart R of Part 1926 - Guidelines for Establishing the Components of a Site-specific Erection Plan: Non-mandatory Guidelines for Complying With § 1926.752(e)

29:8.1.1.1.1.18.19.13.18 : Appendix A

Appendix A to Subpart S of Part 1926 - Decompression Tables

29:8.1.1.1.1.19.19.6.26 : Appendix A

Appendix A to Subpart V of Part 1926 [Reserved]

29:8.1.1.1.1.22.19.20.27 : Appendix A

Appendix A to Subpart X of Part 1926 - Ladders

29:8.1.1.1.1.24.19.7.34 : Appendix A

Appendix A to Subpart Y of Part 1926 - Examples of Conditions Which May Restrict or Limit Exposure to Hyperbaric Conditions

29:8.1.1.1.1.25.25.14.35 : Appendix A

Appendix A to Subpart CC of Part 1926 - Standard Hand Signals

29:8.1.1.1.1.29.25.45.37 : Appendix A

Appendix A to Part 1926 - Designations for General Industry Standards Incorporated Into Body of Construction Standards

29:8.1.1.1.1.31.25.1.40 : Appendix A

New § no. and/or para.	Source § no. and/or para.
1926.20 (c)	1910.5 (a)
[Do.] (d)	[Do.] (c)
[Do.] (e)	[Do.] (d)
1926.32(g)	1910.12(b)
1926.33	1910.20
1926.34 (a)	1910.36(b)(4)
[Do.] (b)	1910.37 (q)(1)
[Do.] (c)	[Do.] (k)(2)
1926.35	1910.38(a)
1926.50(g)	1910.151(c)
1926.51(a)(6)	1910.141(a)(2)(v)
[Do.] (d)(2)	[Do.] (h)
[Do.] (f) (2)-(4)	[Do.] (d) (1)-(3)
[Do.] (g)	[Do.] (g)(2)
[Do.] (h)	[Do.] (a)(5)
[Do.] (i)	[Do.] (e)
1926.53 (c)-(r)	1910.96
1926.57 (f)-(i)	1910.94
1926.64	1910.119
1926.65	1910.120
1926.66 (a)	1910.107 (a)
[Do.] (b)	[Do.] (b) (1)-(10)
[Do.] (c)-(d)	[Do.] (c)-(d)
[Do.] (e)-(g)	[Do.] (h)-(j)
1926.95	1910.132
1926.96	1910.136
1926.97 (a)-(e)	1910.156(e)
[Do.] (f)-(h)	[Do.] Subpt. L App. E
1926.98	1910.156(f)
1926.102(a) (6)	1910.133(a) (2)
[Do.] (7)	[Do.] (4)
[Do.] (8)	[Do.] (5)
1926.103 (d)	1910.134 (a)
[Do.] (e)	[Do.] (b)
[Do.] (f)-(i)	[Do.] (d)-(g)
1926.150(c)(1) (xi)	1910.157 (g)(1)
[Do.] (xii)	[Do.] (g)(2)
[Do.] (xiii)	[Do.] (c)(4)
[Do.] (xiv)	[Do.] (e)(3)
1926.152 (b)(5)	1910.107(e)(2)
[Do.] (h)	1910.106(j)
[Do.] (i)	[Do.] (b)
[Do.] (j)	[Do.] (c)
[Do.] (k) (1)-(3)	[Do.] (g)(4)
[Do.] (k)(4)	[Do.] (a)(22)
1926.153(a) (3)	1910.110(a)(4)
[Do.] (m) (1)	[Do.] (d)(1)
[Do.] (2)	[Do.] (d)(2)
[Do.] (3)	[Do.] (d)(7)(vii)
[Do.] (4)	[Do.] (d)(7)(viii)
[Do.] (n)	[Do.] (b)(5)(iii)
[Do.] (o)	[Do.] (d)(10)
1926.156	1910.160
1926.157	1910.162
1926.158	1910.164
1926.159	1910.165
1926.200(c)(3)	1910.145(d)(4)
1926.250(c)	1910.176(c)
[Do.] (d) (1)-(4)	1910.30(a) (1), (2), (4) and (5)
1926.251(a)(5)	1910.184(a)
[Do.] (a)(6)	[Do.] (d)
[Do.] (b)(6)(i)-(ii)	[Do.] (e)(3)(i)-(ii)
[Do.] (c)(6)-(7)	[Do.] (c) (2)-(3)
[Do.] (c)(8)	[Do.] (c)(5)
[Do.] (c)(9)	[Do.] (c)(7)
[Do.] (c)(10)-(12)	[Do.] (c)(10)-(12)
[Do.] (c)(13)-(15)	[Do.](f) (2)-(4)
[Do.] (d)(3)-(6)	[Do.] (h) (2)-(5)
[Do.] (e)(3)-(5)	[Do.] (i) (2)-(4)
[Do.] (e)(6)-(7)	[Do.] (i) (6)-(7)
[Do.] (e)(8)	[Do.] (i)(9)
1926.300(b) (3)	1910.212(a)(1)
[Do.] (4)	[Do.] (a)(3)
[Do.] (5)	[Do.] (a)(5)
[Do.] (6)	[Do.] (b)
[Do.] (7)	1910.215(b)(9)
[Do.] (8) and (9)	[Do.] (b) (3) and (4)
1926.302(b)(10)	1910.244(b)
1926.303(b)(2)	1910.215(a) (2)
[Do.] (e)	[Do.] (4)
1926.304 (g)	1910.213(h)(1)
[Do.] (h)	[Do.] (d)(1)
[Do.] (i)	[Do.] (c)(1)
1926.305(d)(1)	1910.244(a)(2) (iii)-(viii)
1926.306	1910.169
1926.307	1910.219
1926.350(a) (10)	1910.253(b) (4)(iii)
[Do.] (11)	[Do.] (2)(ii)
[Do.] (12)	1910.101(b)
1926.353(b)(3)	1910.252(b)(4)(iv)
1926.416 (a)(4)	1910.333(c)(2)
[Do.] (f) (1)	[Do.] (c)(10)
[Do.] (2)	1910.334(a)(1)
[Do.] (3)	[Do.] (a)(2)(iii)
[Do.] (4)	[Do.] (a)(5)
[Do.] (5)-(6)	[Do.] (b) (1)-(2)
[Do.] (7)-(9)	[Do.] (c) (1)-(3)
[Do.] (10)	[Do.] (d)
1926.417(d)	1910.333(b)(2)
1926.451(a) (22)	1910.28(a) (15)
[Do.] (23)	[Do.] (18)
[Do.] (24)	[Do.] (20)
1926.453 (a)	1910.29(a)
[Do.] (b)	[Do.] (c)
1926.600(a)(7)	1910.176(f)
1926.602(c)(1) (vii)	1910.178(m) (3)
[Do.] (viii)	[Do.] (12)
1926.900 (s)	1910.109 (g)(2)(ii)
[Do.] (t)	[Do.] (h)(3)(ii)
1926.905(u)	[Do.] (e)(3)(iii)
1926.914(aa)	[Do.] (a)(12)
1926.1050(b)	1910.21(g)(9)
1926.1071	1910.401
1926.1072	1910.402
1926.1076	1910.410
1926.1080	1910.420
1926.1081	1910.421
1926.1082	1910.422
1926.1083	1910.423
1926.1084	1910.424
1926.1085	1910.425
1926.1086	1910.426
1926.1087	1910.427
1926.1090	1910.430
1926.1091	1910.440
1926.1092	1910.441
1926.1102	1910.1002
1926.1103	1910.1003
1926.1104	1910.1004
1926.1105	1910.1005
1926.1106	1910.1006
1926.1107	1910.1007
1926.1108	1910.1008
1926.1109	1910.1009
1926.1110	1910.1010
1926.1111	1910.1011
1926.1112	1910.1012
1926.1113	1910.1013
1926.1114	1910.1014
1926.1115	1910.1015
1926.1116	1910.1016
1926.1117	1910.1017
1926.1118	1910.1018
1926.1128	1910.1028
1926.1129	1910.1029
1926.1144	1910.1044
1926.1145	1910.1045
1926.1147	1910.1047
1926.1148	1910.1048