Maryland 2025 Regular Session

Maryland House Bill HB339 Compare Versions

Version 1 (Old)

Version 2 (New)

Old	New		Differences
1	1
2	2
3	3		EXPLANATION: CAPITALS INDICATE MAT TER ADDED TO EXISTING LAW.
4	4		[Brackets] indicate matter deleted from existing law.
5		-	Underlining indicates amendments to bill.
6		-	Strike out indicates matter stricken from the bill by amendment or deleted from the law by
7		-	amendment.
8	5		hb0339
9	6
10	7		HOUSE BILL 339
11	8		N1 5lr2042
12	9
13	10		By: Delegates Lehman, Allen, Foley, Harris, J. Long, Martinez, Pena–Melnyk,
14	11		Ruth, Solomon, Stein, Stewart, Taveras, Taylor, Terrasa, Woods, and
15		-	Ziegler ~~Ziegler, Healey, and R. Lewis~~
	12	+	Ziegler
16	13		Introduced and read first time: January 13, 2025
17	14		Assigned to: Environment and Transportation
18		-	Committee Report: Favorable with amendments
19		-	House action: Adopted
20		-	Read second time: February 26, 2025
21	15
22		-	~~CHAPTER ______~~
	16	+	A BILL ENTITLED
23	17
24	18		AN ACT concerning 1
25	19
26	20		Real Property – Residential Rental Apartments – Air–Conditioning 2
27	21		Requirements 3
28	22
29	23		FOR the purpose of requiring a landlord to provide air–conditioning to certain residential 4
30	24		rental units in a certain manner; and generally relating to air–conditioning 5
31	25		requirements for residential rental units. 6
32	26
33	27		BY adding to 7
34	28		Article – Real Property 8
35	29		Section 8–121 9
36	30		Annotated Code of Maryland 10
37	31		(2023 Replacement Volume and 2024 Supplement) 11
38	32
39	33		SECTION 1. BE IT ENACTED BY THE GENERAL ASSEMBLY OF MARYLAND, 12
40	34		That the Laws of Maryland read as follows: 13
41	35
42	36		Article – Real Property 14
43	37
44	38		8–121. 15
45	39
46	40		(A) IN THIS SECTION, “HVAC SYSTEM” MEANS A HEATING , VENTILATING, 16
47	41		AND AIR–CONDITION ING SYSTEM. 17
48		-	2 HOUSE BILL 339
49	42
	43	+	(B) (1) THIS SECTION APPLIES ONLY TO RESIDENTIAL RENTAL UNITS IN 18
	44	+	APARTMENT BUILDINGS . 19
50	45
51		-	(B) (A) (1) THIS SECTION APPLIES ONLY TO RESIDENTIAL RENTAL 1
52		-	UNITS IN APARTMENT B UILDINGS WITH FOUR OR MORE IN DIVIDUAL DWELLING 2
53		-	UNITS. 3
54		-
55		-	(2) THIS SECTION DOES NOT APPLY TO RESIDENTIAL RENTAL UNITS 4
56		-	LOCATED IN PROPERTY LISTED ON THE NATIONAL REGISTER OF HISTORIC PLACES. 5
57		-
58		-	(C) (B) A LANDLORD SHALL PROVI DE AIR–CONDITIONING IN EACH 6
59		-	RESIDENTIAL UNIT IN ACCORDANCE WITH SUBS ECTION (D) (C) OF THIS SECTION AS 7
60		-	FOLLOWS: 8
61		-
62		-	(1) BEGINNING JUNE 1, 2025, FOR NEWLY CONSTRUCTE D 9
63		-	RESIDENTIAL RENTAL U NITS; AND 10
64		-
65		-	(2) BEGINNING OCTOBER 1, 2025, FOR RESIDENTIAL RENT AL UNITS 11
66		-	THAT UNDERGO AN UPGRADE OR MAINTE NANCE TO THE UNIT ’S HVAC SYSTEM 12
67		-	THAT MEETS THE THRES HOLD OF “ALTERATION” OUTLINED IN THE AMERICAN 13
68		-	SOCIETY OF HEATING, REFRIGERATING , AND AIR–CONDITIONING ENGINEERS 14
69		-	(ASHRAE) STANDARD 90.1 (ENERGY STANDARD FOR SITES AND BUILDINGS 15
70		-	EXCEPT LOW–RISE RESIDENTIAL BUILDINGS) RENOVATION THAT INCL UDES THE 16
71		-	REPLACEMENT OR SUBST ANTIAL UPGRADE OF EL ECTRICAL SYSTEMS OR HEATING 17
72		-	SYSTEMS. 18
73		-
74		-	(D) (1) SUBJECT TO PARAGRAPH (2) OF THIS SUBSECTION , EACH YEAR 19
75		-	FROM JUNE 1 TO SEPTEMBER 30, BOTH INCLUSIVE , A LANDLORD SHALL PRO VIDE 20
76		-	AIR–CONDITIONING IN EACH RESIDENTIAL UNIT : 21
77		-
78		-	(I) AT A TEMPERATURE IN T HE 90% ACCEPTABILITY 22
79		-	THRESHOLD OF THE ASHRAE STANDARD 55 (THERMAL ENVIRONMENTAL 23
80		-	CONDITIONS FOR HUMAN OCCUPANCY) AT 3 FEET ABOVE THE FLOOR LEVEL IN 24
81		-	EACH HABITABLE SPACE IN THE UNIT; AND 25
82		-
83		-	(II) IF A DAY’S 24–HOUR TEMPERATURE AVE RAGE IS EXPECTED 26
84		-	TO BE GREATER THAN 92.3 DEGREES FAHRENHEIT, AT A TEMPERATURE IN THE 80% 27
85		-	ACCEPTABILITY THRESH OLD OF THE ASHRAE STANDARD 55 AT 3 FEET ABOVE THE 28
86		-	FLOOR LEVEL IN EACH HABITABLE SPACE IN T HE UNIT. 29
87		-
88		-	(2) (I) FOR AN AIR–CONDITIONING SYSTEM THAT IS NOT UNDER 30
89		-	THE CONTROL OF THE T ENANT, THE LANDLORD SHALL M AINTAIN THE 31
90		-	TEMPERATURE IN THE U NIT IN ACCORDANCE WI TH PARAGRAPH (1) OF THIS 32
91		-	SUBSECTION. 33
92		-
93		-	(II) FOR AN AIR–CONDITIONING SYSTEM THAT IS UNDER THE 34
94		-	CONTROL OF THE TENAN T, THE LANDLORD SHALL E NSURE THAT THE 35 HOUSE BILL 339 3
95		-
96		-
97		-	AIR–CONDITIONING SYSTEM IS IN GOOD WORKING O RDER AND IS CAPABLE OF 1
98		-	MAINTAINING THE TEMP ERATURE IN THE UNIT IN ACCORDANCE WITH P ARAGRAPH 2
99		-	(1) OF THIS SUBSECTION . 3
100		-
101		-	(C) EXCEPT AS OTHERWISE N ECESSARY FOR PURPOSE S OF REASONABLE 4
102		-	MAINTENANCE AND REPA IR, EACH YEAR FROM JUNE 1 TO SEPTEMBER 30, BOTH 5
103		-	INCLUSIVE, A LANDLORD SHALL PRO VIDE AIR–CONDITIONING IN EACH 6
104		-	RESIDENTIAL UNIT AS FOLLOWS: 7
105		-
106		-	(1) FOR AN AIR–CONDITIONING SYSTEM THAT IS NOT UNDER TH E 8
107		-	CONTROL OF THE TENAN T, THE LANDLORD SHALL M AINTAIN THE TEMPERAT URE IN 9
108		-	THE UNIT AT NOT GREA TER THAN 80 DEGREES FAHRENHEIT AT 3 FEET ABOVE THE 10
109		-	FLOOR LEVEL IN EACH HABITABLE SPACE IN T HE UNIT; AND 11
110		-
111		-	(2) FOR AN AIR –CONDITIONING SYSTEM THAT IS UNDER THE 12
112		-	CONTROL OF THE TENAN T, THE LANDLORD SHALL E NSURE THAT THE 13
113		-	AIR–CONDITIONING SYSTEM IS IN GOOD WORKING O RDER AND IS CAPABLE OF 14
114		-	MAINTAINING THE TEMP ERATURE IN THE UNIT AT NOT GREATER THAN 80 DEGREES 15
115		-	FAHRENHEIT AT 3 FEET ABOVE THE FLOOR LEVEL IN EACH HABITA BLE SPACE IN 16
116		-	THE UNIT. 17
117		-
118		-	SECTION 2. AND BE IT FURTHER ENACTED, That this Act shall be construed to 18
119		-	apply only prospectively and may not be applied or interpreted to have any effect on or 19
120		-	application to any building construction or renovation for which the building permit is 20
121		-	issued before the effective date of this Act. 21
122		-
123		-	SECTION 3. AND BE IT FURTHER ENACTED, That this Act shall take effect June 22
124		-	1, 2025. 23
	46	+	(2) THIS SECTION DOES NOT APPLY TO RESIDENTIAL RENTAL UNITS 20
	47	+	LOCATED IN PROPERTY LISTED ON THE NATIONAL REGISTER OF HISTORIC PLACES. 21 2 HOUSE BILL 339
125	48
126	49
127	50
128		-	Approved:
129		-	________________________________________________________________________________
130		-	Governor.
131		-	________________________________________________________________________________
132		-	Speaker of the House of Delegates.
133		-	________________________________________________________________________________
134		-	President of the Senate.
	51	+	(C) A LANDLORD SHALL PROVI DE AIR–CONDITIONING IN EACH 1
	52	+	RESIDENTIAL UNIT IN ACCORDANCE WITH SUBS ECTION (D) OF THIS SECTION AS 2
	53	+	FOLLOWS: 3
	54	+
	55	+	(1) BEGINNING JUNE 1, 2025, FOR NEWLY CONSTRUCTE D 4
	56	+	RESIDENTIAL RENTAL U NITS; AND 5
	57	+
	58	+	(2) BEGINNING OCTOBER 1, 2025, FOR RESIDENTIAL RENT AL UNITS 6
	59	+	THAT UNDERGO AN UPGRADE OR MAINTE NANCE TO THE UNIT ’S HVAC SYSTEM 7
	60	+	THAT MEETS THE THRESHOLD OF “ALTERATION” OUTLINED IN THE AMERICAN 8
	61	+	SOCIETY OF HEATING, REFRIGERATING , AND AIR–CONDITIONING ENGINEERS 9
	62	+	(ASHRAE) STANDARD 90.1 (ENERGY STANDARD FOR SITES AND BUILDINGS 10
	63	+	EXCEPT LOW–RISE RESIDENTIAL BUILDINGS). 11
	64	+
	65	+	(D) (1) SUBJECT TO PARAGRAPH (2) OF THIS SUBSECTION , EACH YEAR 12
	66	+	FROM JUNE 1 TO SEPTEMBER 30, BOTH INCLUSIVE , A LANDLORD SHALL PRO VIDE 13
	67	+	AIR–CONDITIONING IN EACH R ESIDENTIAL UNIT : 14
	68	+
	69	+	(I) AT A TEMPERATURE IN T HE 90% ACCEPTABILITY 15
	70	+	THRESHOLD OF THE ASHRAE STANDARD 55 (THERMAL ENVIRONMENTAL 16
	71	+	CONDITIONS FOR HUMAN OCCUPANCY) AT 3 FEET ABOVE THE FLOOR LEVEL IN 17
	72	+	EACH HABITABLE SPACE IN THE UNIT; AND 18
	73	+
	74	+	(II) IF A DAY’S 24–HOUR TEMPERATURE AVE RAGE IS EXPECTED 19
	75	+	TO BE GREATER THAN 92.3 DEGREES FAHRENHEIT, AT A TEMPERATURE IN THE 80% 20
	76	+	ACCEPTABILITY THRESH OLD OF THE ASHRAE STANDARD 55 AT 3 FEET ABOVE THE 21
	77	+	FLOOR LEVEL IN EACH HABITABLE SPACE IN T HE UNIT. 22
	78	+
	79	+	(2) (I) FOR AN AIR–CONDITIONING SYSTEM THAT IS NOT UNDER 23
	80	+	THE CONTROL OF THE T ENANT, THE LANDLORD SHALL M AINTAIN THE 24
	81	+	TEMPERATURE IN THE U NIT IN ACCORDANCE WITH P ARAGRAPH (1) OF THIS 25
	82	+	SUBSECTION. 26
	83	+
	84	+	(II) FOR AN AIR–CONDITIONING SYSTEM THAT IS UNDER THE 27
	85	+	CONTROL OF THE TENAN T, THE LANDLORD SHALL E NSURE THAT THE 28
	86	+	AIR–CONDITIONING SYSTEM IS IN GOOD WORKING O RDER AND IS CAPABLE OF 29
	87	+	MAINTAINING THE TEMP ERATURE IN THE UNIT IN ACCORDANCE WITH P ARAGRAPH 30
	88	+	(1) OF THIS SUBSECTION. 31
	89	+
	90	+	SECTION 2. AND BE IT FURTHER ENACTED, That this Act shall be construed to 32
	91	+	apply only prospectively and may not be applied or interpreted to have any effect on or 33
	92	+	application to any building construction or renovation for which the building permit is 34
	93	+	issued before the effective date of this Act. 35 HOUSE BILL 339 3
	94	+
	95	+
	96	+
	97	+	SECTION 3. AND BE IT FURTHER ENACTED, That this Act shall take effect June 1
	98	+	1, 2025. 2
	99	+