Subway

447 N State St, Chicago, IL 60654
American
Last inspected: Oct 27, 2025
90
Score
Low Risk

Subway has been inspected 21 times since 2010. Subway was last inspected on Oct 27, 2025. A low risk rating suggests inspectors haven't found much to be concerned about lately.

Recent inspections have turned up roughly the same number of issues each time, hovering near four violations per visit.

Across the inspection history, “physical facilities installed, maintained & clean” is the issue that surfaces most often, recorded 11 times.

Among Chicago restaurants, the typical score is 81; Subway is comfortably above that bar. The full picture is one of consistent compliance.

21
Inspections
0
Critical latest
0
Major latest
2
Minor latest
Inspection History
Oct 27, 2025
Reinspection
2 minor violations.
View 2 violations
Physical facilities installed, maintained & clean
Inspector notes: 6-201.11---OBSERVED BLACKENED, MOLDY WALL CAULKING ABOVE THE THREE COMPARTMENT SINK.MUST REPLACE AND MAINTAIN.
55
All food employees have food handler training
Inspector notes: 2-102.13---OBSERVED A FOOD HANDLING EMPLOYEE WITHOUT A FOOD HANDLER CERTIFICATE.INSTRUCTED TO SHOW PROOF OF TRAINING FOR ALL FOOD HANDLING EMPLOYEES.
57
90
Oct 21, 2025
Complaint
2 critical violations. 2 major violations. 3 minor violations.
View 7 violations
Proper cold holding temperatures
Inspector notes: OBSERVED IMPROPER COLD HOLDING TEMPERATURES OF (TCS FOODS) HELD INSIDE FRONT PREP LINE COOLER. OBSERVED CHICKEN AT 53.8F-54.5F, TUNA AT 47.8F, STEAK AT 53.1F, CHEESES AT 49.1F, SLICED DELI MEATS AT 48.2F. MANAGEMENT VOLUNTARILY DISCARDED APPROXIMATELY 10#'S OF FOODS WORTH $400.00. INSTRUCTED MANAGEMENT TO MONITOR AND MAINTAIN ALL COLD (TCS FOODS) AT 41F OR COLDER AT ALL TIMES.PRIORITY VIOLATION 7-38-005, CITATION ISSUED.
22
Proper cooling methods used; adequate equipment for temperature control
Inspector notes: OBSERVED (ONE) OF THE FRONT PREP LINE COOLERS WITH AN AIR TEMPERATURE OF 47.9F.THE COOLER WAS USED TO STORE (TCS FOODS) SUCH AS SLICED DELI MEATS,CHEESES AND CHICKEN,TUNA ETC.INSTRUCTED MANAGEMENT TO REPAIR AND MAINTAIN SAID COOLER AT 41F OR COLDER AT ALL TIMES.MANAGEMENT IMMEDIATELY NOTIFIED REFRIGERATION REPAIR SERVICE.THE SAID COOLER IS TAGGED "HELD FOR INSPECTION" AT THIS TIME.INSTRUCTED NOT TO USE UNTIL REPAIRED.PRIORITY VIOLATION 7-38-005,CITATION ISSUED. (**SEE COMMENTS).
33
Food-contact surfaces: cleaned & sanitized
Inspector notes: OBSERVED BLACK SLIMY SUBSTANCES ON INTERIOR WATER COMPONENTS OF THE ICE MAKER, DRIPPING INTO ICE "ICE IS USED FOR HUMAN CONSUMPTION".INSTRUCTED TO TURN OFF MACHINE, REMOVE ICE AND HAVE INTERIOR OF ICE MAKER CLEANED AND SANITIZED AND MAINTAIN.PRIORITY FOUNDATION VIOLATION 7-38-005, CITATION ISSUED.
16
City of chicago food service sanitation certificate
Inspector notes: NO CITY OF CHICAGO CERTIFIED FOOD MANAGER ON SITE OR VALID DOCUMENTATION ON THE PREMISES WHILE TCS FOODS (DELI MEATS, MEATBALLS, TUNA ETC.) ARE BEING PREPARED AND SERVED TO CUSTOMERS.INSTRUCTED PERSON-IN-CHARGE THAT A CITY OF CHICAGO CERTIFIED FOOD SERVICE MANAGER MUST BE ON THE PREMISES AT ALL TIMES WHEN (TCS FOODS) ARE PREPARED, HANDLED, AND/OR SERVED. (MANAGER ARRIVED AT 11:15 A.M. INTO THE INSPECTION). PRIORITY FOUNDATION VIOLATION 7-38-012, CITATION ISSUED. -
2
Person in charge present, demonstrates knowledge, and performs duties
Inspector notes: OBSERVED NO PERSON IN CHARGE PRESENT WITH CITY OF CHICAGO CERTIFIED MANAGER CERTIFICATE.
1
Physical facilities installed, maintained & clean
Inspector notes: OBSERVED BLACKENED, MOLDY WALL CAULKING ABOVE THE THREE COMPARTMENT SINK.MUST REPLACE AND MAINTAIN.
55
All food employees have food handler training
Inspector notes: OBSERVED A FOOD HANDLING EMPLOYEE WITHOUT A FOOD HANDLER CERTIFICATE.INSTRUCTED TO SHOW PROOF OF TRAINING FOR ALL FOOD HANDLING EMPLOYEES.
57
52
Feb 28, 2025
License
4 minor violations.
View 4 violations
Plumbing installed; proper backflow devices
Inspector notes: OBSERVED LEAKING FAUCET AT HANDWASHING SINK IN REAR PREP DISHWASHING AND OBSERVED LEAKING FAUCET AT THREE COMPARTMENT SINK. INSTRUCTED TO REPAIR LEAKING FAUCETS AT HANDWASHING SINK IN REAR PREP/DISHWASHING AREA AND THREE COMPARTMENT SINK. OBSERVED SLOW DRAINING HANDWASHING SINK IN FRONT PREP AREA. INSTRUCTED TO REPAIR SLOW DRAINING HANDWASHING SINK IN FRONT PREP AREA.
51
Physical facilities installed, maintained & clean
Inspector notes: OBSERVE LOWER WALL ACROSS FROM UTILITY SINK WITH LARGE PIPE UNDER REPAIR, SURFACE OF SAID AREA OF LOWER WALL IS NON SMOOTH. INSTRUCTE TO SMOOTHLY REPAIR LOWER WALL ACROSS FROM UTILITY SINK WITH LARGE PIPE FOR EASE OF CLEANABILITY.
55
Physical facilities installed, maintained & clean
Inspector notes: OBSERVED LARGE COLD HOLDING UNIT NOT IN USE IN HALLWAY LEADING TO WASHROOMS. INSTRUCTED TO REMOVE LARGE COLD HOLDING UNIT THAT IS NO LONGER IN USE AND UNNECESSARY TO THE OPERATION AND MAINTENANCE OF THE ESTABLISHMENT.
55
Adequate ventilation & lighting; designated areas used
Inspector notes: OBSERVED NON WORKING MECHANICAL VENTILATION IN BOTH WASHROOMS. INSTRUCTED TO REPAIR NON WORKING MECHANICAL VENTILATION IN BOTH WASHROOMS.
56
82
Feb 27, 2025
Routine
No violations found.
100
Apr 16, 2024
Routine
2 major violations. 7 minor violations.
View 9 violations
City of chicago food service sanitation certificate
Inspector notes: OBSERVED NO CITY OF CHICAGO CERTIFIED FOODSERVICE MANAGER ON PREMISES. INSTRUCTED CITY OF CHICAGO CERTIFIED FOODSERVICE MANAGER MUST BE ON PREMISES AT ALL TIMES. PRIORITY FOUNDATION VIOLATION. 7-38-012 CITATION ISSUED.
2
Person in charge present, demonstrates knowledge, and performs duties
Inspector notes: OBSERVED NO CITY OF CHICAGO CERTIFIED FOODSERVICE MANAGER ON PREMISES. INSTRUCTED CITY OF CHICAGO CERTIFIED FOODSERVICE MANAGER MUST BE ON PREMISES AT ALL TIMES. PRIORITY FOUNDATION VIOLATION.
1
Physical facilities installed, maintained & clean
Inspector notes: OBSERVED DUST ON CEILING TILES AND CEILING VENT COVER IN FRONT PREP AREA NEAR COLD HOLDING UNITS. INSTRUCTED TO CLEAN CEILING TILES AND VENT COVER AND MAINTAIN IN SAID AREA OF FRONT PREP.
55
Adequate handwashing sinks properly supplied and accessible
Inspector notes: OBSERVED NO HANDWASHING SIGNAGE AT HANDWASHING SINKS IN ALL GENDER EMPLOYEE WASHROOM. INSTRUCTED TO PROVIDE CLEARLY VISIBLE HANDWASHING SIGNAGE AT ALL HANDWASHING SINKS USED BY FOOD EMPLOYEES.
10
Approved thawing methods used
Inspector notes: OBSERVED PACKAGES OF CHICKEN, CHICKEN NOODLE SOUP, GUACAMOLE AND ITALIAN BEEF THAWING IMPROPERLY ON THE PREP TABLE NEXT TO SLICER. CORRECTED ON SITE PACKAGES OF CHICKEN, CHICKEN NOODLE SOUP, GUACAMOLE AND ITALIAN BEEF PLACED IN WALKIN COOLER TO THAW UNDER REFRIGERATION.
35
Insects, rodents, & animals not present
Inspector notes: OBSERVED OPENING AT CORNER SOUTHSIDE BASE OF FRONT ENTRANCE OUTER DOOR. INSTRUCTED TO SEAL ALL OUTER OPENINGS TO PREVENT PEST ENTRANCE.
38
Single-use/single-service articles: properly stored & used
Inspector notes: OBSERVED SINGLE USE BOWLS AND LIDS STORED IN CABINET UNDERNEATH FRONT PREP HANDWASHING SINK. CORRECTED ON SITE BOWLS AND LIDS RELOCATED TO ANOTHER AREA IN FRONT PREP AREA.
45
Food & non-food contact surfaces cleanable, properly designed, constructed & used
Inspector notes: OBSERVED BOXES STORED IN REAR DRY STORAGE SOUTHSIDE CORNER STORED ON SODA CRATE. INSTRUCTED TO PROVIDED ADEQUATE SHELVING TO ELEVATE ALL FOOD AND NONFOOD ITEMS AT LEAST SIX INCHES OFF OF FLOOR FOR EASE OF CLEANABILITY.
47
Physical facilities installed, maintained & clean
Inspector notes: OBSERVED MOP DRYING ON FAUCET OF UTILITY SINK. INSTRUCTED TO INSTALL MOP DRYING RACK TO PROPERLY DRAIN AND DRY MOPS TO PREVENT PEST BREEDING.
55
58
Mar 22, 2023
Routine
2 minor violations.
View 2 violations
Non-food/food contact surfaces clean
Inspector notes: OBSERVED ICE BUILDUP ON WALK-IN FREEZER FLOOR. FACILITY MUST CLEAN AND MAINTAIN.
49
Allergen training as required
Inspector notes: CITY CERTIFIED MANAGER ON SITE DOES NOT HAVE AN ALLERGEN CERTIFICATION. ALL CITY CERTIFIED MANAGERS MUST OBTAIN A VALID FOOD ALLERGEN CERTIFICATION.
58
90
Feb 23, 2022
License
4 minor violations.
View 4 violations
Adequate handwashing sinks properly supplied and accessible
Inspector notes: OBSERVED NO HAND WASHING SIGNAGE AT EITHER EXPOSED HAND WASHING SINK. INSTRUCTED TO PROVIDE.
10
Physical facilities installed, maintained & clean
Inspector notes: OBSERVED STANDING WATER ON FLOOR OF REAR DRY STORAGE AREA. INSTRUCTED TO CORRECT AND MAINTAIN IN GOOD CONDITION.
55
Physical facilities installed, maintained & clean
Inspector notes: OBSERVED UNUSED OVEN STORED ON FLOOR IN REAR NEXT TO UTILITY SINK. INSTRUCTED TO REMOVE FROM PREMISES.
55
Adequate ventilation & lighting; designated areas used
Inspector notes: OBSERVED BUILD UP OF DUST ON VENT IN MEN'S TOILET ROOM. INSTRUCTED TO DETAIL CLEAN AND MAINTAIN IN GOOD CONDITION.
56
82
Jan 13, 2021
Routine
1 major violation. 1 minor violation.
View 2 violations
City of chicago food service sanitation certificate
Inspector notes: THE PERSON IN CHARGE WAS UNABLE TO PROVIDE A CITY OF CHICAGO FOOD SANITATION LICENSE DURING THE INSPECTION, WHILE TCS FOODS; DELI MEATS AND TUNA ARE BEING PREPARED AND SERVED. INSTRUCTED TO HAVE A CERTIFIED MANAGER ONSITE AT ALL TIMES. PRIORITY FOUNDATION 7-38-012 CITATION ISSUED.
2
Physical facilities installed, maintained & clean
Inspector notes: MUST DETAIL CLEAN LOOSE DEBRIS ON FLOORS IN WALK-IN COOLER & FREEZER, AND IN REAR STORAGE AREA. INSTRUCTED TO MAINTAIN.
55
86
Mar 19, 2020
Routine
1 minor violation.
View 1 violation
Physical facilities installed, maintained & clean
Inspector notes: OBSERVED SLIGHT BUILD UP OF BLACK SLIME ON CAULK AROUND 3 COMPARTMENT SINK LOCATED IN REAR PREP AREA. INSTRUCTED TO REMOVE, CLEAN, RE-CAULK, AND MAINTAIN.
55
95
May 13, 2019
Routine
No violations found.
100
Aug 7, 2018
Routine
2 major violations. 3 minor violations.
View 5 violations
Management, food employee and conditional employee; knowledge, responsibilities and reporting
Inspector notes: NO EMPLOYEE HEALTH POLICE. INSTRUCTED TO PROVIDE HEALTH POLICY. PRIORITY FOUNDATION VIOLATION. NO CITATION
3
Procedures for responding to vomiting and diarrheal events
Inspector notes: NO EMPLOYEE HEALTH POLICY FOR CLEAN UP PROCEDURE FOR VOMITING AND DIARRHEAL EVENTS. INSTRUCTED TO PROVIDE. PRIORITY FOUNDATION VIOLATION NO CITATION
5
Variance obtained for specialized processing methods
32
Physical facilities installed, maintained & clean
Inspector notes: OBSERVED FLOOR NOT CLEAN OF DEBRIS UNDER POP STORAGE AREA CRATES. INSTRUCTED TO CLEAN/MAINTAIN.
55
Allergen training as required
Inspector notes: NO ALLERGEN AWARENESS . INSTRUCTED THAT ALL EMPLOYEES WITH CITY OF CHICAGO FOOD CSERIFICATE MUST HAVE ALLERGEN AWARENESS.
58
70
Mar 27, 2018
Routine
1 minor violation.
View 1 violation
Floors: constructed per code, cleaned, good repair, coving installed, dust-less cleaning methods used
Inspector notes: OBSERVED GREASY FLOORS IN REAR HALLWAY LEADING TO GARBAGE ALLEY. INSTRUCTED TO CLEAN AND MAINTAIN.
34
95
Apr 6, 2017
Routine
2 minor violations.
View 2 violations
Potentially hazardous food meets temperature requirement during storage, preparation display and service
Inspector notes: OBSERVED 5 LBS OF CHICKEN AT 47.7F IN COOLER VALUED AT $10, OBSERVED 5 LBS OF BEEF VALUED AT $10 FOUND AT 47.7F, OBSERVED 3LBS OF MORTADELLA VALUED AT $5 AT 46.4F. ALL FOOD WAS VOLUNTARILY DISCARDED. CRITICAL VIOLATION 7-38-005 (A)
3
* certified food manager on site when potentially hazardous foods are prepared and served
Inspector notes: OBSERVED NO CITY OF CHICAGO CERTIFIED FOOD MANAGER ON SITE WHILE POTENTIALLY HAZARDOUS FOOD IS BEING SERVED INCLUDING CHICKEN, HAM AND BEEF. MUST HAVE CITY OF CHICAGO CERTIFIED FOOD MANAGER ON SITE AT ALL TIMES. SERIOUS VIOLATION 7-38-012
21
90
May 11, 2016
Routine
3 minor violations.
View 3 violations
Facilities to maintain proper temperature
Inspector notes: FOUND FRONT PREP SANDWICH MEAT COOLER NO MAINTAINED, AMBIENT AIR TEMPERATURE AT 45.2 F, FOUND TURKEY, SALAMI, ETC. HELD INSIDE SAID COOLER. INSTRUCTED MANAGER TO REPAIR COOLER. AMBIENT AIR TEMPERATURE MUST BE 40 F OR BELOW. CRITICAL VIOLATION. 7-38-005(A). CITATION ISSUED.
2
Potentially hazardous food meets temperature requirement during storage, preparation display and service
Inspector notes: FOUND THE FOLLOWING POTENTIALLY HAZARDOUS FOODS HELD AT IMPROPER TEMPERATURES- TURKEY AT 50.0 F, SALAMI AT 47.0 F, CHICKEN AT 47.0 F, BEEF AT 46.9 F. INSTRUCTED MANAGER POTENTIALLY HAZARDOUS FOODS MUST BE HELD AT 40 F OR BELOW IF HELD COLD. CRITICAL VIOLATION 7-38-005(A). CITATION ISSUED. ALL OUT OF TEMPERATURE POTENTIALLY HAZARDOUS FOODS VOLUNTARILLY DISCARDED AT THIS TIME.
3
Ventilation: rooms and equipment vented as required: plumbing: installed and maintained
Inspector notes: 3-COMPARTMENT SINK RIGHT SIDE COMPARTMENT PIPE DRAINING SLOWLY. MUST MAINTAIN SINK.
38
86
Apr 17, 2015
Complaint
4 minor violations.
View 4 violations
Walls, ceilings, attached equipment constructed per code: good repair, surfaces clean and dust-less cleaning methods
Inspector notes: MISSING WALL TILES ON THE WALLS AND DOOR FRAME OF BOTH WASHROOMS. MUST FINISH THE WALLS AND DOOR FRAME AND MAINTAIN. MUST SEAL THE GAP AROUND THE PIPE BY THE MOP SINK AND THRU-OUT THE REAR STORAGE AREA.
35
Lighting: required minimum foot-candles of light provided, fixtures shielded
Inspector notes: MISSING SOLID LIGHT SHIELD ABOVE THE REAR PREP TABLE. MUST REPLACE.
36
Refrigeration and metal stem thermometers provided and conspicuous
Inspector notes: PROVIDE VISIBLE THERMOMETER INSIDE THE ONE DOOR REACH IN COOLER IN THE FRONT SERVING AREA.
40
Food handler requirements met
Inspector notes: NO FOOD HANDLER'S CERTIFICATE ON SITE. MUST PROVIDE NEXT ROUTINE INSPECTION.
45
82
Sep 11, 2014
Routine
2 minor violations.
View 2 violations
* certified food manager on site when potentially hazardous foods are prepared and served
Inspector notes: NO CERTIFIED FOOD MANAGER ON DUTY WHILE POTENTIALLY HAZARDOUS FOOD ITEMS ARE PREPARED AND SERVED(CHICKEN, SOUPS,DELI ETC). INSTRUCTED TO ALWAYS HAVE A FOOD SERVICE MANAGER ON SITE AT ALL TIMES. CITATION ISSUED FOR SERIOUS VIOLATION #@7-38-012.
21
Floors: constructed per code, cleaned, good repair, coving installed, dust-less cleaning methods used
Inspector notes: INSTRUCTED TO CLEAN FLOORS BETWEEN WALK IN COOLERS AT THE REAR PREP AREA.
34
90
Dec 16, 2013
Routine
1 minor violation.
View 1 violation
Ventilation: rooms and equipment vented as required: plumbing: installed and maintained
Inspector notes: LEAKY PIPE UNDER 3-COMP SINK, INSTRUCTED TO REPAIR AND MAINTAIN.
38
95
Jan 15, 2013
Routine
2 minor violations.
View 2 violations
Refrigeration and metal stem thermometers provided and conspicuous
Inspector notes: REFRIGERTION THERMOMETER TUCKED IN REAR OF PREP COOLER. INSTRUCTED TO STORE IN WARMEST PART OF COOLER IN A CONSPECUOUS AREA.
40
Premises maintained free of litter, unnecessary articles, cleaning equipment properly stored
Inspector notes: TOILET ROOM KEY WOOD STICK LEFT ON COUNTER NEXT TO STEAM TABLE. INSTRUCTED TO STORE AWAY FROM PREP TABLES.
41
90
Jul 7, 2011
Reinspection
2 minor violations.
View 2 violations
Food and non-food contact equipment utensils clean, free of abrasive detergents
Inspector notes: All food and non-food contact surfaces of equipment and all food storage utensils shall be thoroughly cleaned and sanitized daily. DETAIL CLEAN THE WIRE RACKS ABOVE THE PREP TABLE, CABINETS BELOW THE FRONT HANDSINK AND FOUNTAIN POP MACHINE.
33
Walls, ceilings, attached equipment constructed per code: good repair, surfaces clean and dust-less cleaning methods
Inspector notes: The walls and ceilings shall be in good repair and easily cleaned. DETAIL CLEAN THE WALL BEHIND THE PREP TABLE.
35
90
Jun 24, 2011
Routine
4 minor violations.
View 4 violations
Previous minor violation(s) corrected 7-42-090
Inspector notes: A separate and distinct offense shall be deemed to have been committed for each Minor violation that is not corrected upon re-inspection by the health authority. PREVIOUS MINOR VIOLATIONS FROM REPORT #250515 ON 6/3/10 NOT CORRECTED: 37/01- Toilet rooms shall be completely enclosed and shall be vented to the outside air or mechanically ventilated. Mens washroom door not self closing. Must provide and install self closing device for washroom door. 40/01- All food establishments that display, prepare, or store potentially hazardous foods shall have calibrated metal stem thermometers, provided and conspicuous, for refrigerated and hot food units. Must provide thermometer for reserve prep cooler (at front prep line). SERIOUS VIOLATION 7-42-090
29
Food and non-food contact equipment utensils clean, free of abrasive detergents
Inspector notes: All food and non-food contact surfaces of equipment and all food storage utensils shall be thoroughly cleaned and sanitized daily. DETAIL CLEAN THE WIRE RACKS ABOVE THE PREP TABLE, CABINETS BELOW THE FRONT HANDSINK AND FOUNTAIN POP MACHINE.
33
Walls, ceilings, attached equipment constructed per code: good repair, surfaces clean and dust-less cleaning methods
Inspector notes: The walls and ceilings shall be in good repair and easily cleaned. DETAIL CLEAN THE WALL BEHIND THE PREP TABLE AND CEILING TILES IN THE REAR PREP AREA.
35
Ventilation: rooms and equipment vented as required: plumbing: installed and maintained
Inspector notes: REPAIR 3 COMPARTMENT SINK SO THAT HOT AND COLD WATER CAN BE USED SEPARATELY.
38
82
Jun 3, 2010
Routine
4 minor violations.
View 4 violations
Food and non-food contact surfaces properly designed, constructed and maintained
Inspector notes: All food and non-food contact equipment and utensils shall be smooth, easily cleanable, and durable, and shall be in good repair. Reserve prep cooler rubber door gaskets ripped. Must repair/replace damaged door gaskets.
32
Toilet room doors self closing: dressing rooms with lockers provided: complete separation from living/sleeping quarters
Inspector notes: Toilet rooms shall be completely enclosed and shall be vented to the outside air or mechanically ventilated. Mens washroom door not self closing. Must provide and install self closing device for washroom door.
37
Ventilation: rooms and equipment vented as required: plumbing: installed and maintained
Inspector notes: Ventilation: All plumbing fixtures, such as toilets, sinks, washbasins, etc., must be adequately trapped, vented, and re-vented and properly connected to the sewer in accordance with the plumbing chapter of the Municipal Code of Chicago and the Rules and Regulations of the Board of Health. Front line handwash bowl faucet leaking. Must repair and maintain sink.
38
Refrigeration and metal stem thermometers provided and conspicuous
Inspector notes: All food establishments that display, prepare, or store potentially hazardous foods shall have calibrated metal stem thermometers, provided and conspicuous, for refrigerated and hot food units. Must provide thermometer for reserve prep cooler (at front prep line).
40
82

Frequently Asked Questions

When was Subway last inspected?

The most recent health inspection at Subway on file is from Oct 27, 2025. The public record contains 21 inspections in total.

What is the most common violation at Subway?

Across the inspection record, “physical facilities installed, maintained & clean” has been cited 11 times, more than any other issue at Subway.

Has Subway's inspection record improved over time?

Results have been roughly steady. Inspections at Subway have averaged around four violations per visit across the recent record.

What does a low risk rating mean?

A low risk rating at Subway means inspectors found minimal or no significant issues at the most recent visit. Most facilities at this tier have a clean recent inspection report.

How often is Subway inspected?

Based on the inspection history on file, Subway is inspected roughly once per year on average.