Identification

Process through which cultural resources are made known.

IDT

See Interdisciplinary Team

Impact

The likely effects of an action or proposed action upon specific natural, cultural, or socioeconomic resources. Impacts may be direct, indirect, cumulative, beneficial, or adverse. Severe impacts that harm the integrity of park resources or values are known as “impairments.”

Impairment

An impact so severe that, in the professional judgment of a responsible NPS manager, it would harm the integrity of park resources or values and violate the 1916 NPS Organic Act.

Implementation Plan

A plan that tiers off the GMP and tells how to accomplish one of more of the desired resource conditions or visitor experiences. Implementation plans can be specific resource protection plans or plans like construction documents.

Incremental Treatment (Historic Structure Report)

Treatment of a structure may be phased over several years or funding cycles. It is possible to realize the ultimate treatment over time by addressing a structure’s components incrementally. For example, restoring the roof one year and reconstructing shutters the following year. Addressing one feature such as window rehabilitation or one management issue such as universal accessibility requires a clear understanding of the entire structure. Except for preservation, at minimum, a comprehensive Part 1 of an HSR and a feature- or project-specific Part 2 should be completed prior to any incremental treatment. Ultimate treatment, or the desired final effect, must be identified prior to conducting any phased or incremental treatments.

Indefinite-Delivery Contract

A contract that may be used to acquire supplies and/or services when the exact times and/or exact quantities of future deliveries are not known at the time of contract award. There are three types: definite quantity; requirements; and indefinite quantity. (FAR 16.501-2(a))

Indefinite-Quantity Contract

An indefinite-delivery contract that provides for an indefinite quantity, within stated limits (minimum and maximum), of supplies or services to be furnished during a fixed period, with deliveries or performance to be scheduled by placing orders with the contractor. (FAR 16.504(a))

Indian

Any person who is a member of any Indian tribe, band, group, pueblo, or community which is recognized by the Federal Government as eligible for services from the Bureau of Indian Affairs (BIA) and any Native as defined in the Alaska Native Claims Settlement Act. (FAR 26.101)

Indian Organization

The governing body of any Indian tribe or entity established or recognized by the governing body of an Indian tribe. (FAR 26.101)

Indian Tribe

Any Indian tribe, band, pueblo, or community, including native villages and native groups (including corporations organized by Kenai, Juneau, Sitka, and Kodiak) as defined in the Alaska Native Claims Settlement Act, which is recognized by the Federal Government as eligible for services from Bureau of Indian Affairs (BIA). (FAR 26.101)

Inherently Governmental Function

A function that is so intimately related to the public interest as to mandate performance by the Government. Such functions include activities that require either the exercise of discretion in applying Government authority (i.e., the act of governing) or the making of value judgments related to Government monetary transactions and entitlements. (FAR 7.501)

In-kind

The replacement of historic fabric with new material that marches the historic detail, configuration, appearance and fabric as closely as humanly possible.

Inspection

Examining and testing supplies or services (including, when appropriate, raw materials, components, and intermediate assemblies) to determine whether they conform to contract requirements. (FAR 46.101)

Integrated Pest Management (IPM)

A decision-making process that coordinates knowledge of pest biology, the environment, and available technology to prevent unacceptable levels of pest damage, by cost-effective means, while posing the least possible hazard to people, resources, and the environment.

Integrity

The authenticity of a property’s historic identity, evidenced by the survival of physical characteristics that existed during its historic or prehistoric period; the extent to which a property retains its historic appearance.

Intelligent Transportation System (ITS)

Systems that utilize electronics, communications and information processing to improve the efficiency and safety of surface transportation. Information can be found at the following website: http://www.calccit.org/itsdecision/

Interdisciplinary Team (IDT)

Project team that includes designers (architects, engineers, landscape architects), planners, resource/compliance specialists, editors, visual information specialists, and resource specialists; IDT may be composed of any combination of NPS park, regional, and/or DSC employees and A/E or other private enterprise employees.

Interested Party

1. A prime contractor or an actual or prospective offeror whose direct economic interest would be affected by the award of a subcontract or by the failure to award a subcontract. (FAR 26.101)



2. For the purpose of filing a protest, an actual or prospective offeror whose direct economic interest would be affected by the award of a contract or by the failure to award a contract. (FAR 33.101)

Intermodal

A mode is a particular form of transportation, such as automobile, transit, carpool, ship, bicycle. Intermodal refers to connections between modes.

Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA)

This landmark $155 billion federal legislation signed into law in December 1991, called for broad changes in transportation decision-making, and included major revisions to metropolitan and statewide planning processes. ISTEA emphasized diversity and balance of modes, as well as the preservation of existing systems over construction of new facilities. The law expired in September 1997, and was followed by TEA-21, which was superseded by SAFETEA-LU in August 2005.

Interpretation

Communication of the historic and cultural values of a historic structure to a visitor through a variety of media.

Interpretive Prospectus (IP)

Identifies specific interpretive themes and objectives. It contains recommendations on appropriate media for interpretive exhibits.

Introduction (Cultural Landscape Report)

Invasive Plant

A plant that is both non-native and able to establish on many sites, grow quickly, and spread to the point of disrupting plant communities or ecosystems. Note: From the Presidential Executive Order 13112 (February 1999): 'An invasive species is defined as a species that is 1) non-native (or alien) to the ecosystem under consideration and 2) whose introduction causes or is likely to cause economic or environmental harm or harm to human health.' In contrast to item 2) of the Executive Order, which includes plants invasive in agricultural settings, the Connecticut Invasive Plant Working Group lists non-native plants as invasive only if they invade minimally managed (natural) areas. Information can be found at the following website: http://www.ct.nrcs.usda.gov/plant_definitions.html

Inventory

A list of cultural resources, usually of a given type and/or in a given area.

Invoice

A contractor’s bill or written request for payment under the contract for supplies delivered or services performed. (FAR 32.902)

Invoice Payment

A Government disbursement of monies to a contractor under a contract or other authorization for supplies or services accepted by the Government. This includes payments for partial deliveries that have been accepted by the Government and final cost or fee payments where amounts owed have been settled between the Government and the contractor. Invoice payments also include all payments made under the Payments Under Fixed-Price Construction Contracts clause or the Payments Under Fixed-Price Architect-Engineer Contracts clause. Invoice payments do not include contract financing payments. (FAR 32.902)

IP

See Interpretive Prospectus

IPM

See Integrated Pest Management

ISTEA

See Intermodal Surface Transportation Efficiency Act of 1991

ITS

See Intelligent Transportation System

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