Approved By: R. Keen Date: March 6, 2014 Rev. No Scaffolding Procedure

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1 Scaffolding Procedure A CONTROL DOCUMENT 1. PURPOSE The purpose of this section is to protect employees from harm by providing guidelines to ensure scaffolding is erected inspected, dismantled, used and stored in a safe manner. 2. SCOPE The scope of this policy shall cover the erection, inspection, use, dismantling, and storing of scaffolding systems by Danos employees who have demonstrated competence through experience and verified training. Scaffold users shall also be required to maintain verifiable training for usage. In addition, a site-specific Work Permit shall be completed prior to beginning any scaffolding. 3. GENERAL RESPONSIBILITIES Danos will ensure that all potential hazards regarding scaffolding in our facility or job sites are evaluated. This standard practice is intended to address comprehensively the issues of: evaluating and identifying potential deficiencies, evaluating the associated potential hazards, communicating information concerning these hazards, and establishing appropriate procedures and protective measures for employees. 4. DEFINITIONS & ABBREVIATIONS A. DEFINITIONS Anchorage a secure point of attachment. Competent Person a person due to training, experience and qualifications is capable of identifying existing and predictable hazards in the surroundings or working conditions which are unsanitary, hazardous, or dangerous to employees, and who is authorized to take prompt corrective measures to eliminate them. Continual tie-off/one-hundred percent (100%) Tie-off at all times employees are to remain anchored to an approved anchorage through use of their double lanyard, personal fall arrest system. To further explain, it means one lanyard must remain attached to an anchorage or tied off before the other can be attached to an Printed on 5/7/2014 Management System Document Page 1 of 11

2 anchorage point such that an employee can move about on an elevated position an remain attached to an anchorage point at all times. To simply state, one of the two lanyards are always attached or tied off. D-rings-used as coupling device for end attachments on lanyards, harness, etc. (Chevron requires all D-rings must be a minimum of 2.25 inside diameter) Fall Protection Plan is required prior to initiating a work project in which falls may be encountered. The plan will contain requirements for ensuring the removal of the risks of falls due to changes in operations. A specific plan will be developed by a competent person upon the completion of a hazard assessment of the job task. Guard Rail System a barrier erected to protect employees from falling to lower levels. Lanyard a flexible line of rope, wire rope, or strap, which generally has a connector at each end for connecting the body harness to a deceleration device, lifeline, or anchorage. Leading Edge the edge of a floor, roof, or form work for a floor, or other walking/working surface (such as the deck), which changes location as additional floor, roof, decking or formwork sections are placed, formed or constructed. A leading edge is considered to be an unprotected side or edge during periods when it is not actively and continuously under construction. Lifeline a component consisting of a flexible line for connecting to an anchorage at one end to hang vertically (vertical lifeline), or for connecting to anchorage at both ends to stretch horizontally (horizontal lifeline) and which serves as a means for connecting other components of a personal fall arrest system to the anchorage. Pelican hooks-large snap hooks used as an end attachment on lanyards. (Chevron does allow the use of these hooks as a positioning device only. Chevron will not allow them to be used as a primary means of connection) Personal Fall Arrest System a system used to arrest an employee in a fall from a working level. It consists of an anchorage, connectors and a harness and may include a lanyard, deceleration device, lifeline or suitable combination of these. Body belts are not allowed to be used at any time for fall arrest systems. Qualified Person means one who, by possession of a recognized degree, certificate, professional standing or who, by experience, has successfully demonstrated an ability to solve or resolve problems relating to the subject matter, the work or the project. Printed on 5/7/2014 Management System Document Page 2 of 11

3 Scaffold User anyone who performs work on a scaffold Light Duty Scaffold - Designed and constructed to carry a working load of 25 pounds per square foot. Medium Duty Scaffold - Designed and constructed to carry a working load of 50 pounds per square foot. Heavy Duty Scaffold - Designed and constructed to carry a working load of 75 pounds per square foot. B. ABBREVIATIONS NOT APPLICABLE TO THIS PROCEDURE. 5. EXTERNAL REFERENCES CFR CFR CFR GENERAL REQUIREMENTS To ensure responsibility, safety, and serviceability all manufacturers guidelines for erection, inspection, dismantling, use, and storage shall be adhered to. 6.1 Footing and anchorages. The footing and or anchorage for scaffolds will be sound, rigid, and capable of carrying the maximum intended load without settling or displacement. Unstable objects such as barrels, boxes, loose brick, or concrete blocks will not be used to support scaffolds or planks. 6.2 Scaffolds and their components will be capable of supporting without failure at least four times the maximum intended load. 6.3 Scaffolds will be maintained in a safe condition at all times in accordance with the manufacturer s recommendations. Fixed scaffolds will not be altered or moved horizontally while they are in use or occupied. 6.4 Any scaffold damaged or weakened from any cause will be immediately repaired / replaced and the scaffolding will not be used until repairs / replacements have been completed. 6.5 Scaffolds will not be loaded in excess of the working load for which they are intended. Printed on 5/7/2014 Management System Document Page 3 of 11

4 6.6 All load-carrying timber members of scaffold framing will be a minimum of 1,500 f. (Stress Grade) construction grade lumber. 6.7 All planking will be Scaffold Grade as recognized by grading rules for the type of wood used. The scaffold manufacturer s recommendations will be followed. 6.8 Nails or bolts used in the construction of scaffolds will be of adequate size and in sufficient numbers at each connection to develop the designed strength of the scaffold. Nails will not be subjected to a straight pull. 6.9 All planking or platforms will be overlapped (minimum 12 inches) and secured from movement An access Scaffold or equivalent safe access will be provided Scaffold planks will extend over their end supports not less than 6 inches nor more than 18 inches unless restrained by nails and number nine gauge wire The poles, legs, or uprights of scaffolds will be plumb, and securely and rigidly braced to prevent swaying and displacement Scaffolding materials being manually hoisted onto a scaffold will require a minimum of ¾ manila rope Overhead protection will be provided for employees on a scaffold exposed to overhead hazards Guardrails, midrails, and toe boards must be installed on all open sides and ends of platforms more than 10 feet above the ground or floor Employees must be 100% tied off at all times, while ascending and descending all scaffolds. D-ring scaffold straps will be used by first man up (attached to vertical members of scaffold only) and a davit arm and retractable yo-yo will be installed at top of ladder. Remaining workers must tie off to yo-yo to ascend and descend on scaffold While erecting, inspecting, and dismantling all employees shall be tied off 100% unless a greater hazard exists. Danos MOC process will be required to when greater hazard prevents employees from using appropriate fall protection 6.18 Harnesses shall be worn while working on any scaffold where continuous fall protection is necessary to ascend and descend 6.19 Employees shall not erect, dismantle, inspect, or work on scaffolds: which are covered with ice or snow, In rain or during lightning storms, when wind gusts are in excess of 25 mph, in sea conditions greater than 6-8 feet or when there is no means of rescue available Tools, materials, and debris will not be allowed to accumulate in quantities to cause a hazard Only treated or protected fiber rope will be used for or near any work involving the use of corrosive substances or chemicals Wire rope used for scaffold suspension will be capable of supporting at least six times the intended load The use of shore scaffolds or lean-to scaffolds will not be used by this company Lumber sizes, when used in this policy; refer to nominal sizes except where otherwise stated Scaffolds will be secured to permanent structures, through use of anchor bolts, reveal bolts, or other equivalent means. Window cleaners' anchor bolts will not be used Special precautions will be taken to protect scaffold members, including any wire ropes, when using a heat-producing process Qualified Persons shall design scaffold. Scaffolds 125 or taller are required to be designed by a qualified engineer. Printed on 5/7/2014 Management System Document Page 4 of 11

5 6.28. All scaffolding shall be tagged regardless of tasks being performed. This includes erecting, inspecting, dismantling, or use All scaffold material shall be hoisted or lowered in single components. No joining pipe or tubing sections is allowed during the erection, modification or dismantling process All rope used to hoist or lower scaffold equipment shall have a looped section at the end to employ a choked means of securing the equipment. All tubing sections must be outfitted with a tightened clamp to loop around and prevent slippage. 7. GUIDELINES FOR ERECTING SCAFFOLDING 7.1. Certified scaffold builders contracted by authorized personnel shall assemble all scaffolding Scaffolds less than 125 shall be designed by a qualified person Scaffolds shall be erected plumb and square, as well as be braced and rigid at all times When erecting of scaffolds, red barricade (Danger) tape shall be used Scaffolds shall be erected, moved and altered under the supervision of a competent person At heights above 10, diagonal cross-braces will be utilized at all times 7.7. When erecting, scaffold shall be tagged DO NOT USE 7.8. Do not use damaged material for scaffolding. Immediately tag and remove from service any scaffolding that is damaged during erection process Nails, bolts, or other fasteners used in the construction of ladders, scaffolds, and towers will be of adequate size and in sufficient numbers at each connection to develop the designed strength of the unit All exposed surfaces will be free from sharp edges, burrs or other safety hazards The maximum work level height will not exceed four (4) times the minimum or least base dimensions of any scaffold. Where the basic unit does not meet this requirement, suitable outrigger frames will be employed to achieve this least base dimension, or provisions will be made to guy or brace the unit against tipping The minimum platform width for any work level will not be less than 20 inches for scaffolds. Ladder stands will have a minimum step width of 16 inches The work level platform of scaffolds will be of wood, aluminum, or plywood planking, steel or expanded metal, for the full width of the scaffold, except for necessary openings. Work platforms will be secured in place. All planking will be 2-inch (nominal) scaffold grade minimum 1,500 f. (stress grade) construction grade lumber or equivalent All scaffold work levels 6 feet or higher above the ground or floor will have a minimum (4-inch nominal) toe board All work levels 6 feet or higher above the ground or floor will consist of a 2 top rail (39-42 inches) and mid rail (19 ) capable of withstanding 200 lb outward forces Wheels or casters. Wheels or casters will be inspected to ensure that they are provided with strength and dimensions to support four (4) times the design working load All scaffold casters will be provided with a positive wheel and/or swivel lock to prevent movement. Printed on 5/7/2014 Management System Document Page 5 of 11

6 Casters or wheels must have a serviceable locking device Where leveling of the elevated work platform is required, screw jacks or other suitable means for adjusting the height will be used Employees are not permitted to ride rolling scaffolds during relocation Adjusting screws may not be extended more than 12 inches Before moving the platform, all equipment and material shall be removed from the work platform Be aware of overhead obstructions when moving scaffolds Never run mobile scaffolds over electrical cords Never pull mobile scaffolds from the top, always push at base level No scaffold barriers or runners are to be extended through ladder cages Scaffold building pipe racks over roadways shall have traffic markers at the base of the scaffold Mark all scaffold bearers (runners) and legs extending in walkways with caution (YELLOW/BLACK) tape Provide safe means of access to all scaffolds. Extension ladders will not be used as scaffolding means of access During scaffold erection, no work shall be conducted above or below During erection, throwing or tossing scaffold material is not permitted Manual carrying of equipment or materials up or down stairs is not permitted At a minimum, ¾ plywood shall be used to cover hole openings less than 12 in diameter Plywood shall not be used to cover open holes exceeding 12 in diameter A center support (belly bar) is required when using wood planks in excess of 8 long Wood planks cannot be cut, modified, or notched The minimum platform width for any working level shall not be less than two boards (planks) wide (minimum of 19 ) Ladders The minimum platform width for any work level will not be less than 20 inches for scaffolds. Ladder stands will have a minimum step width of 16 inches All scaffold ladders shall be a minimum of 3 above working platform and all stationary scaffold shall have ladders resting on ground or solid foundation Scaffolds over 20 in height shall have ladders staggered every 20 with rest landings for each Section The bottom scaffold ladder shall have at minimum two ladder brackets All scaffold ladder hardware and fittings must be securely attached and from the same manufacturers Scaffold ladders shall be strategically placed with employee safety of the utmost intention. All scaffold ladders shall be kept at least 10 away from moving or motorized equipment unless special precautions are in place such as Lock Out Tag Out Tools No altered, modified, or home-made tools are permitted on the worksite at any time All tools shall be equipped with tool lanyards attached to workers while erecting or dismantling scaffolding All tools shall be used in the manner of which they are designed Printed on 5/7/2014 Management System Document Page 6 of 11

7 8. INSPECTION 8.1. All individual scaffold components shall be inspected prior to installation and after dismantling 8.2. All completed scaffolding shall be inspected by a competent person prior to each shift 8.3. Scaffold shall be inspected after alteration, modification, damage, or if any special circumstances occur that may cause harm to workers Inspection logs are required on all scaffolds, and filed appropriately by competent person 8.5. All inspection criteria will be outlined on Danos Scaffold Inspection Checklist and conducted on a weekly basis when scaffolding system is being used. 9. SCAFFOLD TAGGING Scaffold tags must meet the following requirements: 9.1. They must be substantial and able to withstand the environment in which they are used 9.2. They must be singularly identifiable (By employee) 9.3. They shall be standardized with respect to size, color, or shape, and tags must have a standardized print and format Green tags indicate that the scaffolds meet all OSHA requirements for that type of scaffold Yellow Tags denotes caution and indicates that a specific hazard exists. The type of hazard will be listed on the tag Red tags denote danger and warn personnel not to use or climb the scaffold Danos will ONLY allow green tags on scaffolds (onshore) that are built from the ground up. A Management of Change process is required when scaffold is to be tagged green in the offshore environment on all scaffolds 6 or higher. ALL hanging scaffolds require a yellow tag and 100% fall protection when used 9.8. The scaffold tags and signs shall be in place as soon as the first ring of the scaffold is erected A competent person must sign and date the inspection scaffold tag. Scaffold tags and signs shall be place where it can be visible to all employees Scaffold tags must be attached in a substantial manner such as with a nylon tie wrap Signs and barricades shall be visible at all times while work is performed and shall be removed or covered promptly when the hazards no longer exist There shall be no variation in the type of design of signs posted. All signs shall be furnished with rounded or blunt corners and shall be free from sharp edges, burrs, splinters, or other sharp projections. The ends or heads of bolts or other fastening devices shall be located in such a way that they do not constitute a hazard Danger signs shall be used only where an immediate hazard exists Danger signs shall have red as the predominating color for the upper panel; black outline on the borders; and a white lower panel for additional sign wording Employees shall review tag, verify latest inspection, and follow color-coded instructions before Printed on 5/7/2014 Management System Document Page 7 of 11

8 attempting to use scaffolding. 10. USE Once a scaffold has been determined safe for work, the following procedures shall be adhered to while working on the scaffolding: Employees shall review tag, verify latest inspection, and follow color-coded instructions before attempting to use scaffolding Scaffolds shall be maintained in a safe condition and shall not be altered or moved horizontally while they are in use or occupied Personnel shall wear properly tied off safety harnesses (fall protection) on scaffold platforms not equipped with standard guardrails if the working surface is six (6) feet or more above ground level, unless other adequate protection is provided. Refer to the Fall Prevention Procedure Damaged or weakened scaffolds shall be immediately repaired or replaced, and shall not be used until the repair or replacement has been completed No one is allowed on a scaffold while it is being moved. All tools and materials should be removed before moving. Check overhead clearance before moving scaffolding Tools or materials on scaffold platforms must be secured so they will not create a tripping hazard or become dislodged and fall Do not climb scaffold guardrails, mid-rails or brace members. Use access ladders or other safe means of access No alteration is permitted to any scaffold member by welding, burning, cutting, drilling or bending, unless approved and certified by a Professional Engineer Employees shall not work on scaffolds: which are covered with ice or snow, in rain or during lightning storms, when wind gusts are in excess of 25 mph, in sea conditions greater than 6-8 ft, or when there is no means of rescue available All tools shall be equipped with tool lanyards attached to workers while working off of scaffolding Work only from platform area, never extend beyond guardrail All wheels must be locked on movable scaffolds. 11. SCAFFOLD WORK OVER WATER To insure safety and serviceability, all guidelines shall be adhered to for erection, inspection, and dismantling over water Employees shall not erect, dismantle, inspect, or work on scaffolds over water: which are covered with ice or snow, in rain or during lightning storms, when wind gusts are in excess of 25 mph, in sea conditions greater than 6-8 ft, or when there is no means of rescue available Work on scaffolding over water shall not take place in low light conditions without additional hazard mitigation controls implemented (such as additional lighting). Printed on 5/7/2014 Management System Document Page 8 of 11

9 11.4. All employees must wear approved PFDs 12. DISMANTLING Manufacturers dismantling instructions will be followed While dismantling scaffold, employee must be tied off 100% to an approved fall arrest system While dismantling scaffold, employee must be 100% tied off During scaffold dismantling, no work shall be conducted above or below Defective or unserviceable materials will not be stored with serviceable materials Avoid dropping or throwing the components as this could result in damage to the equipment Consult with the project manager or safety where any instructions are unclear Certified scaffold builders contracted by authorized personnel shall assemble all scaffolding When dismantling of scaffolds, red barricade (Danger) tape shall be used Relocation planning considerations will be considered during the dismantling process Dismantling will be supervised by a competent employee Each component will be visually inspected after use. 13. TRAINING All Danos employees who perform work while on a scaffold trained by a person qualified in the subject matter to recognize the hazards associated with the type of scaffold being used and to understand the procedures to control or minimize those hazards The training shall include the following areas, as applicable: All employees engaged in any activity involving erecting, dismantling, or alterations of any scaffold or any of its components should be trained before he/she is allowed to perform such task. This training shall be performed by a competent person All employees who perform some type of work activity while on a scaffold will also be trained in general recognition of working conditions which are unsanitary, hazardous or dangerous. This training should be accomplished before any job duties that require any employee to work off of any elevated work platform, and must be performed by a qualified or competent person Nature of any electrical hazards, fall hazards and falling object hazards in the work area Correct procedures for dealing with electrical hazards and for erecting, maintaining, and disassembling the fall protection systems and falling object protection Proper use of the scaffold, and the proper handling of materials on the scaffold Maximum intended load and the load-carrying capacities of the scaffolds used Retraining When Danos employees are believed to be lacking the skill or understanding needed for safe work involving the erection, use or dismantling of scaffolds, the employee shall be retrained so as to insure Printed on 5/7/2014 Management System Document Page 9 of 11

10 his/her proficiency is regained Retraining is required in at least the following situations: Where changes at the worksite present a hazard about which an employee has not been previously trained or Where changes in the types of scaffolds, fall protection, falling object protection, or other equipment present a hazard about which an employee has not been previously trained Where inadequacies in an affected employee s work involving scaffolds indicate that the employee has not retained the proficiency Whenever (and prior to) a change in their job assignments, a change in the type of scaffolding equipment used, or when a known hazard is added to the work environment which affects this program Additional retraining will also be conducted whenever a periodic inspection reveals, or whenever Danos has reason to believe, that there are deviations from or inadequacies in the employee's knowledge or use of scaffolding equipment or procedures Whenever a scaffolding safety procedure fails The retraining will re-establish employee proficiency and introduce new or revised methods and procedures, as necessary 14. STORAGE AND TRANSPORTATION All scaffolding shall be stored in accordance to manufacture guidelines Place storage locations at strategic points to enable employees to gain and use material in a safe manner Transportation shall be done by truck, trailer, or forklift. Place a red flag on all rods that extend 4 feet past truck or trailer. 15. REVISION HISTORY: Revision Date Description of changes Requested By 000 8/1/00 Initial Release G. Barfield 001 7/15/02 Update G. Barfield 002 9/17/04 Put into ISO9000 format Si Kelly /01/06 Finalized M. Bradshaw Printed on 5/7/2014 Management System Document Page 10 of 11

11 004 11/08/06 Update M. Bradshaw 005 1/8/14 Update R. Keen 006 2/26/ Low light conditions. R. Keen 007 3/6/ Lifting single components. R. Keen Rope rigged to lift components. Printed on 5/7/2014 Management System Document Page 11 of 11