Mecanico

MANAGING SYSTEM INTEGRITY
FOR

HAZARDOUS LIQUID PIPELINES
API STANDARD 1160

APRIL 2001 FOR BALLOT

Foreword --Regulatory Requirements for Pipeline Integrity Management
This standard – Managing Pipeline System Integrity – provides guidance to the pipeline industry for managing integrity. It is important that operators using this Standard understand the Federal pipeline safetyrequirements for Pipeline Integrity Management in High Consequence Areas when establishing or enhancing their integrity management programs. Although pipeline operators must comply with the pipeline safety regulations, a robust, high quality pipeline integrity program requires more than a compliance approach to managing pipeline integrity. Operators should build upon the foundation established by theregulations to develop an integrity management program that best serves their unique operational needs. To assist users of the Standard, this foreword provides a summary of the regulatory requirements for integrity management. Effective March 31, 2001, the Code of Federal Regulations (CFR) governing hazardous liquid pipeline operation and maintenance was amended to establish new requirements for “Pipeline Integrity Management in High Consequence Areas” (49 CFR 195.452, referred to here as “ the rule” 1 The purpose of these new requirements is to ). enhance and validate pipeline integrity, and provide improved protection for high consequence areas that could be affected by an unintended release of hazardous liquids from a pipeline system. High consequence areas are defined in 49 CFR 195.450 as:1. A high population area, which means an urbanized area, as defined and delineated by the U.S. Census Bureau, that contains 50,000 or more people and has a population density of at least 1,000 people per square mile. An other populated area, which means a place, as defined and delineated by the U.S. Census Bureau, that contains a concentrated population, such as an incorporated or unincorporatedcity, town, village, or other designated residential or commercial area. A commercially navigable waterway, which means a waterway where a substantial likelihood of commercial navigation exists. These waterways are identified in the National Waterways Network, a geographic database created by the National Waterways GIS Design Committee. An area of the environment that has been designated asunusually sensitive to oil spills (an “ unusually sensitive area” or USA). USAs are defined in 49 CFR 195.6.

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This API Standard includes guidance for complying with these requirements based on proven industry practices for managing pipeline system integrity. The following discussion provides a description of the requirements in 49 CFR 195.452, and
This rule applies to operators whoown or operate 500 or more miles of hazardous liquid pipeline. At the time this Standard was being prepared, a similar rule covering other hazardous liquid pipeline operators was in preparation.
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identifies the location in this standard where guidance and information is provided to facilitate operator compliance. The rule requires that operators develop and implement a writtenintegrity management program. This integrity management program must include: ?? ?? ?? An identification of all pipeline segments that could affect a high consequence area in the event of a pipeline failure. A plan for conducting baseline assessments of the line pipe in these segments. A framework that addresses how each element of the operator’ integrity s management program will be implemented.Pipeline segments that could impact high consequence areas must be identified by December 31, 2001. The Baseline Assessment Plan and framework must be completed by March 31, 2002. Section 5 of this Standard provides an overview of a pipeline integrity management program, and the steps necessary to craft the required framework. The Baseline Assessment Plan for assessing the condition of line segments...