1st...it's an international standard. Who cares if it's been adopted by the US. The US representative body to the ISO (actually IOS) is ANSI and voted in favor of adoption in 2002. The standard officially went into print Nov 2002 and superceeds 10011-1,-2,3 & 14010, 14011, & 14012 (they have been withdrawn as ISO standards....they don't exist).
You can purchase a copy directly from the ISO, or BSI or most other competent organizations (apparently the ASQ ain't cuttin here either with timeliness)
As for paraphrasing...I'll give you an excerpt form the text. 1st you need to remember that this is a guidance document and is not auditable unless you specify it as a system document. The word "should" is used instead of "shall" and that is what differentiates between auditable and not.
7.3.4 Specific knowledge and skills of environmental management system auditors
Environmental management system auditors should have knowledge and skills in the following areas.
a) Environmental management methods and techniques: to enable the auditor to examine environmental management systems and to generate appropriate audit findings and conclusions. Knowledge and skills in this area should cover
-environmental terminology,
-environmental management principles and their application, and
-environmental management tools (such as environmental aspect/impact evaluation, life cycle assessment,
environmental performance evaluation, etc.).
b) Environmental science and technology: to enable the auditor to comprehend the fundamental relationships between human activities and the environment. Knowledge and skills in this area should cover
-the impact of human activities on the environment,
-interaction of ecosystems,
-environmental media (e.g. air, water, land),
-management of natural resources (e.g. fossil fuels, water, flora and fauna), and
-general methods of environmental protection.
c) Technical and environmental aspects of operations: to enable the auditor to comprehend the interaction of the auditee’s activities, products, services and operations with the environment. Knowledge and skills in this area should cover
-sector-specific terminology,
-environmental aspects and impacts,
-methods for evaluating the significance of environmental aspects,
-critical characteristics of operational processes, products and services,
-monitoring and measurement techniques, and
-technologies for the prevention of pollution.
The requirements are the same for internal & external auditors.