Internal Revenue Manual Part 2. Information Technology

Official source: Internal Revenue Manual (https://www.irs.gov/irm/part2/irm_02-003-078), retrieved 2026-10-03. U.S. Government work (17 U.S.C. § 105).

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(1) This transmits revised IRM 2.3.78, IDRS Terminal Responses, Command Code LOCAT.

(1) Updated Chief Information Officer to Rajiv Uppal.

(2) IRM 2.3.78.1 Updated Wage & Investment(W&I) occurrences to reflect new Taxpayer Services (TS).

(3) IRM 2.3.78.1 Added additional Internal Control Information for Authority, Program Controls and Related Resources.

Command Code LOCAT is designed to display the Primary Location Code (PLC) and Collection Location Codes (CLC) based on the input of a 5 digit zip code and Business Operation Division (BOD) code. The PLC contains the Universal Location Code (ULC) and the Area Office Code (AO) responsible for the taxpayer's account. "Universal" is meant to indicate that this code is the same across all BODs. The ULC carries the old 65 FIDO values. The CLC (previously known as the TDA location code) identified the area office of the Collection organization. The Area Office Codes have been assigned unique system values. Therefore, all TS AO's will begin with a 1 (11–15) and designates TS area offices 01–05; all SB/SE AO's will begin with a 2 or 3 (21–27, 35) and designates SB/SE area offices 01–07, 15; TE AO's will begin with 4 and designates TE area offices 41–47; and the LM AO will always be 50.

Purpose: This transmits revised IRM 2.3.78, IDRS Terminal Responses, Command LOCAT.

Audience: LMSB, SB/SE, TE/GE, TS.

Program Owner: Customer Service.

Primary Stakeholders: Taxpayer Services (TS), Large Business and International (LB&I), Small Business Self-Employed (SB/SE), Tax Exempt and Government Entities (TE/GE).

Program Goals: This system is designed to display the Primary Location Code (PLC) and Collection Location Codes (CLC) based on the input of a 5 digit zip code and Business Operation Division (BOD) code.

Command Code LOCAT purpose is to display the Primary Location and Collection Location Codes.

LOCAT was developed as a means to display Primary Location and Collection Location Codes by inputting a 5 digit zip and BOD code.

Applications Development is responsible for operation and maintenance of the command code.

Program Reports:Upon transmit LOCAT will return the ULC and CLC based on the Zip Code and BOD code.

Program Effectiveness: N/A.

Access to this program is governed by SACS.

Acronym

Definition

PLC

Primary Location Code

CLC

Collection Location Code

ULC

Universal Location Code

BOD

Business Operation Division

AO

Area Office Code

TS

Taxpayer Services

LB&I

Large Business & International

TE/GE

Tax Exempt & Government Entities

No related resources available for Command Code LOCAT.

The following are error messages for CC LOCAT

INVALID ZIP CODE INPUT — The zip code input on the screen is not numeric or was not a valid zip code value.

BOD CODE MUST BE WI, SB, TE, or LM — The value input in the BOD-CD field was not one of the 4 valid values.

BOD CODE OF TE REQUIRES INPUT OF BOD CLIENT CODE — If the BOD-CD value is TE the BOD-CLIENT-CD must be input.

INVALID DEFINER CODE— The command code definer (line 1 position 6 — immediately after command code) must contain either F or blank.

ERROR DETERMINING CLC FOR ULCAO— The primary location code calculated by the command code doe not have a corresponding CLC. User support should contact National Office programmer.

Valid response to CC LOCAT with a definer code of F will be the display of a LOCAT response with literals identifying the input format. Valid response to CC LOCAT with a blank definer will be the requested location information.

There are 2 ways to do LOCAT:

LOCAT nnnnn nn n — nnnnn is the 5 digit zip code. nn is the BOD code. n is the TE-BOD-CLIENT-CD. See descriptions below. OR

LOCATF — Enter with definer "F" and a second screen will appear with prompts for the zip code, BOD code, and TE-BOD-CLIENT-CD: LOCAT ZIP>nnnnn BOD>nn TECLIENT>n

See descriptions below.

Description of Entries:

ZIP>

required input — 5 digit zip code

BOD>

required input. values are: WI —Taxpayer Services SB — Small Business/Self-Employed LM — Large/Mid-sized Business TE — Tax Exempt/Government Entity

TECLIENT> (TE-CLIENT-CD)

Required only if the BOD is TE. Values are: B — Tax Exempt Bonds (TEB) F — Federal, State & Local Govts (FSL) I— Indian Tribal Governments (ITG) 1 — Combo ITG & TEB 2 — Combo FSL & TEB 3– Combo Exempt Org & TEB

Please click here for the text description of the image.

See figure.

Record Element Specifications

Item

Line

Position

Description

1

1

11–15

Zip code from input

2

1

21–22

BOD code from input

3

1

33

TE-BOD-CLIENT-CD from input

4

4

7–10

Primary Location Code — the Universal Location Code and the Area Office Code for the zip code and BOD code input.

5

4

18–19

Small Business Collection Location Code — the CLC Area Office that would be assigned for this zip/BOD if at a SB site.

6

4

27–28

Taxpayer Services Collection Location Code —the CLC Area Office that would be assigned to this zip/BOD if at a WI site.

7

4

35–36

Small Business Service Center — the Service Center code where the SB organization would work this case.

8

4

43–44

Taxpayer Services Service Center — the Service Center code where the WI Organization would work this case.

7–11

1–80

Explanatory messages for codes displayed on line 4.

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