# Federal Register
1 - 1926.652 - 89:13750-13752 - Excavations Standard (Design of Cave-in Protection Systems); Extension of the Office of Management and Budget's (OMB) Approval of Information Collection (Paperwork) Requirements - PDF
2 - 1926.652 - 85:67013-67015 - Excavations (Design of Cave-in Protection Systems); Extension of the Office of Management and Budget's (OMB) Approval of Information Collection (Paperwork) Requirements
3 - 1926.652 - 83:13314-13315 - Agency Information Collection Activities; Submission for OMB Review; Comment Request; Excavation Cave-In Protection System Design Standard - PDF
4 - 1926.652 - 79:65704-65705 - Agency Information Collection Activities; Submission for OMB Review; Comment Request; Excavation Cave-in Protection System Design Standard - PDF
5 - 1926.652 - 79:44199-44201 - Excavations (Design of Cave-In Protection Systems); Extension of the Office of Management and Budget's (OMB) Approval of Information Collection (Paperwork) Requirements - PDF
6 - 1926.652 - 76:45297-45298 - Agency Information Collection Activities; Submission for OMB Review; Comment Request; Design of Excavation Cave-in Protection Systems - PDF
7 - 1926.652 - 76:19129-19131 - Excavations (Design of Cave-in Protection Systems); Extension of the Office of Management and Budget's (OMB) Approval of Information Collection (Paperwork) Requirements - PDF
8 - 1926.652 - 73:8374-8375 - Design of Cave-in Protection Systems; Extension of the Office of Management and Budget's (OMB) Approval of Information Collection (Paperwork) Requirements - PDF
9 - 1926.652 - 70:17718-17719 - Submission for OMB Review: Comment Request - PDF
10 - 1926.652 - 69:70710-70711 - Design of Cave-in Protection Systems; Extension of the Office of Management and Budget's (OMB) Approval of Information-Collection Requirements (Paperwork) - PDF
11 - 1926.652 - 64:18809-18810 - Office of Management and Budget Control Numbers Under the Paperwork Reduction Act for Miscellaneous Construction Industry Rules. - PDF
12 - 1926.652 - 63:53930-53937 - Submission for OMB Review; Comment Request - PDF
13 - 1926.652 - 63:37415-37416 - Design of Cave-in Protection Systems; Information Collection Requirements. - PDF
14 - 1926.652 - 54:45894-45991 - Excavations; Construction; Trenching; Shoring; Sloping; Benching;Final Rule
15 - 1926.652 - 53:5280-82 - Excavation
16 - 1926.652 - 52:12288-339 - Excavation
17 - 1926.652 - 37:24345 - Trenching
# Directives
1 - 1926.652 - National - CPL 02-00-165 [CPL 02-00-087] - Compliance Directive for the Excavation Standard, 29 CFR 1926, Subpart P - PDF
# Letters of Interpretation
1 - 1926.652 - Design of Protective Systems in Trenches.
2 - 1926.652(b)(4) - Regulations governing sloping and benching systems for excavations.
3 - 1926.652(g)(1)(ii) - Allowable gap requirement between the trench shield and trench sides.
4 - 1926.652(b)(4) - Can a person who qualifies as a "competent" person under one section of support P also qualify as a competent designer of structural ramps under 1926.651(c)(1)(i)?.
5 - 1926.652(b)(2) - Can a person who qualifies as a "competent" person under one section of support P also qualify as a competent designer of structural ramps under 1926.651(c)(1)(i)?.
6 - 1926.652(b) - Can a person who qualifies as a "competent" person under one section of support P also qualify as a competent designer of structural ramps under 1926.651(c)(1)(i)?.
7 - 1926.652(a)(1) - Protective system requirements for excavations that will not be entered by employees.
8 - 1926.652(c) - Protective system requirements for excavations that will not be entered by employees.
9 - 1926.652(b) - Protective system requirements for excavations that will not be entered by employees.
10 - 1926.652, 1926.652(a)(1), 1926.652(b), 1926.652(c) - Protective system requirements for excavations that will not be entered by employees.
11 - 1926.652(g)(2) - Adjusting work practices to comply with cave-in protection requirements in §1926.652, Requirements for protective systems in excavations.
12 - 1926.652(c) - Permissibility of using average excavation depth to determine protective system requirements for the excavation.
13 - 1926.652(b) - Permissibility of using average excavation depth to determine protective system requirements for the excavation.
14 - 1926.652(a)(1) - Permissibility of using average excavation depth to determine protective system requirements for the excavation.
15 - 1926.652(a)(1)(ii) - Permissibility of using average excavation depth to determine protective system requirements for the excavation.
16 - 1926.652(b)(4) - Registered professional engineer approval requirements for combination trench shield and sloping system trenches with a depth greater than 20 feet.
17 - 1926.652(b)(3) - Registered professional engineer approval requirements for combination trench shield and sloping system trenches with a depth greater than 20 feet.
18 - 1926.652(b) - Registered professional engineer approval requirements for combination trench shield and sloping system trenches with a depth greater than 20 feet.
19 - 1926.652(a) - Registered professional engineer approval requirements for combination trench shield and sloping system trenches with a depth greater than 20 feet.
20 - 1926.652, 1926.652(a), 1926.652(b), 1926.652(b)(3), 1926.652(b)(4) - Registered professional engineer approval requirements for combination trench shield and sloping system trenches with a depth greater than 20 feet.
21 - 1926.652(g)(1)(ii) - Permissibility of installing a trench shield so that the top is flush with the surface.
22 - 1926.652, 1926.652(g)(1)(ii) - Permissibility of installing a trench shield so that the top is flush with the surface.
23 - 1926.652(b) - Registered professional engineer approval requirements for manufactured trench protection systems deeper than 20 feet.
24 - 1926.652(c)(4) - Registered professional engineer approval requirements for manufactured trench protection systems deeper than 20 feet.
25 - 1926.652(c)(3) - Registered professional engineer approval requirements for manufactured trench protection systems deeper than 20 feet.
26 - 1926.652(c)(2) - Registered professional engineer approval requirements for manufactured trench protection systems deeper than 20 feet.
27 - 1926.652(c)(1) - Registered professional engineer approval requirements for manufactured trench protection systems deeper than 20 feet.
28 - 1926.652(c) - Registered professional engineer approval requirements for manufactured trench protection systems deeper than 20 feet.
29 - 1926.652, 1926.652(c), 1926.652(c)(1), 1926.652(c)(2), 1926.652(c)(3), 1926.652(c)(4), 1926.652(b) - Registered professional engineer approval requirements for manufactured trench protection systems deeper than 20 feet.
30 - 1926.652 - Clarification of utility "owner" as used in the Safety and Health Standards for Excavations, Underground Installations.
31 - 1926.652(b) - Requirements to prevent trench collapse during sheet-pile operations.
32 - 1926.652(b) - Trench shield must extend 18" above excavation walls when below grade.
33 - 1926.652(g)(1)(ii) - Trench shields must be installed to prevent lateral movement in a collapse.
34 - 1926.652(c) - Excavations may be shored with wooden shoring.
35 - 1926.652(a)(1) - Excavations may be shored with wooden shoring.
36 - 1926.652 - Clarification of house foundation/basement excavation;Fall protection requirements.
37 - 1926.652 - Concerns with the OSHA June 30 memorandum concerning the application of 29 CFR 1926.652 to house foundation/basement excavations.
38 - 1926.652 - Suspension of 29 CFR 1926.652 to House Foundation/Basement Excavations.
39 - 1926.652 - Whether or not organic rock, such as "Miami oolite rock" should be considered by OSHA as "stable rock".
40 - 1926.652 - Safety Procedures During Gunite and Shotcrete Pool Construction.
41 - 1926.652(a) - Minimum length that an excavation must be before a protective system is required.
42 - 1926.652 - Plywood as a substitute for meeting the standard.
43 - 1926.652 - Design of protective systems for employees working in trenches.
44 - 1926.652 - Excavation standards relating to aluminum rail.
45 - 1926.652 - Use of plywood for shoring and support systems in trenches and excavations.
46 - 1926.652(b)(1)(i) - Classification of soils for providing protective systems in excavations.
47 - 1926.652 - Standards addressing excavations
48 - 1926.652(g)(1)(iv) - Design and use of trench boxes
49 - 1926.652 - Classification and subsequent designs may be used if they have been approved by a registered professional engineer.
50 - 1926.652 - Testing of type C soil is not necessary if employees are adequately protected.
51 - 1926.652 - Clarification of Standards
# Regulations
1 - 1926.652 - Requirements for protective systems.