ADDENDUM NO. 3 / SPECIFICATION NO. 526844

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DEPARTMENT OF PROCUREMENT SERVICES – CITY OF CHICAGO

July 26, 2018

ADDENDUM NO. 3

FOR

WEATHER FORECASTING, ALERTS AND DATA SERVICES FOR THE CHICAGO DEPARTMENT OF AVIATION AND THE OFFICE OF EMERGENCY MANAGEMENT AND COMMUNICATIONS

SPECIFICATION NO. 526844

For which Bids were due in the office of the Chief Procurement Officer, Department of Procurement Services, Bid & Bond Room 103, City Hall, 121 N. LaSalle Street, Chicago, IL 60602 at 11:00 a.m., Central Time on August 1, 2018. The following additions and revisions are incorporated into the above-referenced Specification (the "Contract Documents") as noted. All other provisions and requirements as originally set forth, except as amended by previous addenda, remain in full force and are binding. Any additional work required by this Addendum shall conform to the applicable provisions of the original Contract Documents.

BIDDER MUST ACKNOWLEDGE RECEIPT OF THIS ADDENDUM IN THE SPACE PROVIDED ON THE

PROPOSAL EXECUTION PAGE.

SECTION 1. NOTICE OF REVISIONS/CHANGES/CLARIFICATIONS

BID OPENING HAS BEEN POSTPONED TO August 8, 2018

1. The Bid Opening Date has been postponed to August 8, 2018. For which Bids are due in the Department of

Procurement Services, Bid & Bond Room, Room 103, City Hall, 121 N. LaSalle Street, Chicago, IL 60602 at 11:00 a.m., Central time.

Section 5.8.14 Summary of Weather Data and Forecasting System Line Items

1. Existing Section 5.8.14, Summary of Weather Data and Forecasting System Line Items, has been deleted

in its entirety.

Article 9. Proposal Pages

1. Existing Article 9, Proposal Pages, has been deleted in its entirety and replaced with the revised Article 9,

Proposal Pages, which is attached to this Addendum No. 3 as Attachment 1.

ADDENDUM NO. 3 / SPECIFICATION NO. 526844

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SECTION 2. QUESTIONS AND RESPONSES

CLARIFICATIONS TO BIDDERS QUESTIONS

Question 1: In the Scope of Work for the OEM, it requests Custom Forecasting but in the actual line item it does not ask for this requirement. I am guessing this is an oversight but want to make sure of this is required.

Response: Please see Line No. 9 on the Proposal Pages.

END OF ADDENDUM NO. 3

CITY OF CHICAGO JAMIE L. RHEE DEPARTMENT OF PROCUREMENT SERVICES CHIEF PROCUREMENT OFFICER

ADDENDUM NO. 3 / SPECIFICATION NO. 526844

ATTACHMENT 1

ARTICLE 9. PROPOSAL PAGES

City of ChicagoCatalog RFQ - No Group Lines

PU085I

Spec# 526844

RFQ Header Information

Please Respond By 8/1/2018 RFQ Description

Weather Forecasting, Alerts and Data Services forthe Chicago Department of Aviation and the Officeof Emergency Management and Communications

RFQ Number 5399 Special InstructionsShip To Location 085- O'HARE Your Quote is Effective as of 8/1/2018

For More Information Please Contact MARTELL CRAIG RFQ Status In Process

3127447284

Bid/Proposal pricing for all commodity and/or service line items must be based on the standard unit of measure indicated below. Pricing on alternate units ofmeasure may not be accepted. Unit costs must be limited to three decimal places. Each quote must be signed and unit price, extended price and total price mustbe typed or written in ink.

Quotes on "or equal" items must be identified as "alternate" to specified item on the comment line. If quoting an alternate, indicate manufacturer name,model/part/catalog number and attach descriptive literature. Alternate items may not be accepted. Any exceptions to items specified or other terms must beclearly indicated on the bid.

RFQ Header DetailsContract Type WORK SERV-AVIATION Specification 526844

Target Market NO Procurement Type BID

Advertise Date 12/7/2017 Bid Deposit RequiredWEB BID Edit Rules ANY

Compliance Type Description

Percentage Type Desc Required %

No Compliance Plan Required None 0.00 %

Compliance Officer

Page 1 of 3Run Time: 07/11/18 16:56:12

City of ChicagoCatalog RFQ - No Group Lines

PU085I

Spec# 526844

LineNo Line Type Item Category Commodity Desc UOM Estimated

Usage Price Discount orMarkup % Extended Price Catalog # / ID, Date and Mfr Comments

1 WorkServices

9618871282 96188 WEATHER FORECASTING SERVICE -WEATHER DATA & FORECASTINFORMATION, ACCESS,MONITORING, ALERTING, &DECISION SUPPORT TOOLS(EXCLUDING LIGHTINGMONITORING & ALERTING) FORCHICAGO O'HARE INTERNATIONALAIRPORT, TWELVE(12) USERLICENSES

Month 60 $ (N/A) $ (N/A)

2 WorkServices

9618871284 96188 WEATHER FORECASTING SERVICE -WEATHER DATA & FORECASTINFORMATION, ACCESS,MONITORING, ALERTING, &DECISION SUPPORT TOOLS(EXCLUDING LIGHTINGMONITORING & ALERTING) FORCHICAGO MIDWAY INTERNATIONALAIRPORT, TWELVE(4) USERLICENSES

Month 60 $ (N/A) $ (N/A)

3 WorkServices

9618871286 96188 WEATHER FORECASTING SERVICE -LIGHTNING MONITORING ANDALERTING SYSTEM FOR CHICAGOO'HARE INTERNATIONAL AIRPORT,FOUR (4) USER LICENSES

Month 60 $ (N/A) $ (N/A)

4 WorkServices

9618871289 96188 WEATHER FORECASTING SERVICE -LIGHTNING MONITORING ANDALERTING SYSTEM FOR CHICAGOMIDWAY INTERNATIONAL AIRPORT,TWO (2) USER LICENSES

Month 60 $ (N/A) $ (N/A)

5 WorkServices

9618871290 96188 WEATHER FORECASTING SERVICE -CUSTOMIZED METEOROGICALFORECASTING SERVICES FORCHICAGO O'HARE INTERNATIONALAIRPORT

Month 60 $ (N/A) $ (N/A)

6 WorkServices

9618871292 96188 WEATHER FORECASTING SERVICE -CUSTOMIZED METEOROGICALFORECASTING SERVICES FORCHICAGO MIDWAY INTERNATIONALAIRPORT

Month 60 $ (N/A) $ (N/A)

7 WorkServices

9618871294 96188 WEATHER FORECASTING SERVICE -PAVEMENT DATA ACCESS ANDPAVEMENT TEMPERATUREFORECASTING FOR CHICAGOO'HARE INTERNATIONAL AIRPORT

Month 60 $ (N/A) $ (N/A)

Page 2 of 3Run Time: 07/11/18 16:56:12

City of ChicagoCatalog RFQ - No Group Lines

PU085I

Spec# 526844

LineNo Line Type Item Category Commodity Desc UOM Estimated

Usage Price Discount orMarkup % Extended Price Catalog # / ID, Date and Mfr Comments

8 WorkServices

9618871296 96188 WEATHER FORECASTING SERVICE -PAVEMENT DATA ACCESS ANDPAVEMENT TEMPERATUREFORECASTING FOR CHICAGOMIDWAY INTERNATIONAL AIRPORT

Month 60 $ (N/A) $ (N/A)

9 WorkServices

9618871298 96188 WEATHER FORECASTING SERVICE -CUSTOMIZED WEATHERFORECASTS FOR OEMC,LICENSE-LIGHTNING MONITORINGAND ALERTING SYSTEM, UP TOFOUR (4) LICENSES"

Month 60 $ (N/A) $ (N/A)

Total Price $

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