RefrigerantASHRAE R-515B

R515B PT Chart

Q: Why choose R-515B over R-515A?

Its GWP is lower — 287 against 387 — and both are A1.

Q: What is the GWP of R-515B?

287 in EPA's reference table — R-1234ze(E) (1) at 91.1% and R-227ea (3,220) at 8.9%, mass-weighted under 40 CFR 84.64(b). R-227ea is 8.9% of the mass but about 99.7% of the GWP: 0.089 × 3,220 = 286.6 of 287.5.

Updated October 12, 2026

R-515B

A1 Lower toxicity, no flame propagationHFC/HFO blend Contains an AIM Act HFC

Illustration of a refrigerant cylinder painted light green gray (RAL 7044), the color AHRI Guideline N-2017 calls for on all new refrigerant containers from 2020^{[2], section 4.8}. Label: R-515B, safety class A1, GWP 287. No red band: AHRI Guideline N-2017 reserves it for flammable refrigerants^{[2], section 4.7}.

R-1234ze(E)/R-227ea (91.1/8.9)

Azeotropic blend (ASHRAE 500 series) of 91.1% R-1234ze(E) and 8.9% R-227ea by mass^[6]. Sold as Solstice® N15 by Solstice Advanced Materials^[9]. Safety class A1: lower toxicity, no flame propagation^[5]. GWP 287 in EPA's reference table^[7]; R-515A, with 12% R-227ea, comes to 387 under 40 CFR 84.64(b)^[10]. Solstice Advanced Materials sells it as an R-134a replacement for chillers, food retail and data-center liquid cooling^[9]; EPA's SNAP list for centrifugal chillers accepts it in new equipment^[8].

R-515B saturation pressure is 22.2 PSIG at 40°F, 49.4 PSIG at 70°F, and 89.9 PSIG at 100°F. These are the gauge readings on a static, fully-saturated system; a running system's high side sits well above them. The full table below runs from −40°F to 150°F in 1°F steps.

Checked against the Technical Data Sheet Solstice® N15 (R-515B), DS-21-12-EN (04/21)^[11] at 16 points from 0°F to 150°F: largest difference 0.17°F.

Saturation @ 70°F

49.4 PSIG

GWP (100-yr)

287 US EPA value, 40 CFR 84.64(b)

Temperature glide

under 0.1°F

Boiling point

−2.1°F

Sourced facts

ASHRAE safety class: A1^[5]
Composition (mass): 91.1% R-1234ze(E) / 8.9% R-227ea^[6]
GWP (100-yr): 287^[7]
ODP: 0^[8]
Normal boiling point: −2.1°F (−18.9°C)^[4]
Temperature glide: under 0.1°F at a 40°F dew point^[4]
Lubricant: POE^[9]

R-515B PT calculator Superheat

R-515B PT chart — printable saturation table

Looking for the R-515B PT chart PDF for shop reference? The complete pressure-temperature saturation table is below: every 1° increment from −40°F to 150°F (or to the refrigerant's critical temperature). Use the Print / Save as PDF button in the table header to download a clean, table-only PDF (the rest of the page is hidden from the print output).

R-515B PT Chart — Pressure-Temperature Saturation Table

Computed with CoolProp 8.0.0 in 1°F steps · hvacptcharts.com

R-515B · 1° increments · °F / PSIG

Tinted rows: NBP atmospheric crossover · 32°F H₂O freeze

R-515B pressure-temperature saturation table in Fahrenheit and PSIG
Temp (°F)	Pressure (PSIG)
−40°F	19.1 in. Hg vac.
−39°F	18.8 in. Hg vac.
−38°F	18.4 in. Hg vac.
−37°F	18.1 in. Hg vac.
−36°F	17.7 in. Hg vac.
−35°F	17.4 in. Hg vac.
−34°F	17.0 in. Hg vac.
−33°F	16.6 in. Hg vac.
−32°F	16.3 in. Hg vac.
−31°F	15.9 in. Hg vac.
−30°F	15.5 in. Hg vac.
−29°F	15.1 in. Hg vac.
−28°F	14.6 in. Hg vac.
−27°F	14.2 in. Hg vac.
−26°F	13.8 in. Hg vac.
−25°F	13.3 in. Hg vac.
−24°F	12.9 in. Hg vac.
−23°F	12.4 in. Hg vac.
−22°F	11.9 in. Hg vac.
−21°F	11.4 in. Hg vac.
−20°F	10.9 in. Hg vac.
−19°F	10.4 in. Hg vac.
−18°F	9.9 in. Hg vac.
−17°F	9.4 in. Hg vac.
−16°F	8.8 in. Hg vac.
−15°F	8.3 in. Hg vac.
−14°F	7.7 in. Hg vac.
−13°F	7.1 in. Hg vac.
−12°F	6.5 in. Hg vac.
−11°F	5.9 in. Hg vac.
−10°F	5.3 in. Hg vac.
−9°F	4.7 in. Hg vac.
−8°F	4.0 in. Hg vac.
−7°F	3.4 in. Hg vac.
−6°F	2.7 in. Hg vac.
−5°F	2.0 in. Hg vac.
−4°F	1.4 in. Hg vac.
−3°F	0.7 in. Hg vac.
−2°F NBP (atmospheric)	0.0
−1°F	0.4
0°F	0.8
1°F	1.1
2°F	1.5
3°F	1.9
4°F	2.3
5°F	2.7
6°F	3.1
7°F	3.5
8°F	3.9
9°F	4.4
10°F	4.8
11°F	5.3
12°F	5.7
13°F	6.2
14°F	6.7
15°F	7.1
16°F	7.6
17°F	8.1
18°F	8.6
19°F	9.2
20°F	9.7
21°F	10.2
22°F	10.8
23°F	11.3
24°F	11.9
25°F	12.4
26°F	13.0
27°F	13.6
28°F	14.2
29°F	14.8
30°F	15.4
31°F	16.0
32°F H₂O freeze	16.7
33°F	17.3
34°F	18.0
35°F	18.7
36°F	19.3
37°F	20.0
38°F	20.7
39°F	21.4
40°F	22.2
41°F	22.9
42°F	23.6
43°F	24.4
44°F	25.2
45°F	25.9
46°F	26.7
47°F	27.5
48°F	28.3
49°F	29.2
50°F	30.0
51°F	30.8
52°F	31.7
53°F	32.6
54°F	33.5
55°F	34.4
56°F	35.3
57°F	36.2
58°F	37.1
59°F	38.1
60°F	39.1
61°F	40.0
62°F	41.0
63°F	42.0
64°F	43.0
65°F	44.1
66°F	45.1
67°F	46.2
68°F	47.3
69°F	48.3
70°F	49.4
71°F	50.6
72°F	51.7
73°F	52.8
74°F	54.0
75°F	55.2
76°F	56.4
77°F	57.6
78°F	58.8
79°F	60.0
80°F	61.3
81°F	62.6
82°F	63.8
83°F	65.2
84°F	66.5
85°F	67.8
86°F	69.2
87°F	70.5
88°F	71.9
89°F	73.3
90°F	74.7
91°F	76.2
92°F	77.6
93°F	79.1
94°F	80.6
95°F	82.1
96°F	83.6
97°F	85.1
98°F	86.7
99°F	88.3
100°F	89.9
101°F	91.5
102°F	93.1
103°F	94.8
104°F	96.4
105°F	98.1
106°F	99.8
107°F	101.6
108°F	103.3
109°F	105.1
110°F	106.9
111°F	108.7
112°F	110.5
113°F	112.4
114°F	114.2
115°F	116.1
116°F	118.0
117°F	120.0
118°F	121.9
119°F	123.9
120°F	125.9
121°F	127.9
122°F	129.9
123°F	132.0
124°F	134.1
125°F	136.2
126°F	138.3
127°F	140.4
128°F	142.6
129°F	144.8
130°F	147.0
131°F	149.3
132°F	151.5
133°F	153.8
134°F	156.1
135°F	158.4
136°F	160.8
137°F	163.2
138°F	165.6
139°F	168.0
140°F	170.5
141°F	172.9
142°F	175.4
143°F	178.0
144°F	180.5
145°F	183.1
146°F	185.7
147°F	188.3
148°F	191.0
149°F	193.7
150°F	196.4

R-515B pressure-temperature saturation table in Celsius and kPa
Temp (°C)	Pressure (kPa)
−40°C	−65
−39°C	−63
−38°C	−61
−37°C	−58
−36°C	−56
−35°C	−54
−34°C	−51
−33°C	−49
−32°C	−46
−31°C	−43
−30°C	−40
−29°C	−37
−28°C	−34
−27°C	−31
−26°C	−28
−25°C	−24
−24°C	−20
−23°C	−17
−22°C	−13
−21°C	−9
−20°C	−5
−19°C NBP (atmospheric)	0
−18°C	4
−17°C	9
−16°C	14
−15°C	19
−14°C	24
−13°C	29
−12°C	34
−11°C	40
−10°C	46
−9°C	52
−8°C	58
−7°C	65
−6°C	71
−5°C	78
−4°C	85
−3°C	92
−2°C	100
−1°C	107
0°C H₂O freeze	115
1°C	123
2°C	131
3°C	140
4°C	149
5°C	158
6°C	167
7°C	177
8°C	186
9°C	197
10°C	207
11°C	217
12°C	228
13°C	239
14°C	251
15°C	263
16°C	275
17°C	287
18°C	300
19°C	313
20°C	326
21°C	339
22°C	353
23°C	368
24°C	382
25°C	397
26°C	412
27°C	428
28°C	444
29°C	460
30°C	477
31°C	494
32°C	511
33°C	529
34°C	547
35°C	566
36°C	585
37°C	604
38°C	624
39°C	644
40°C	665
41°C	686
42°C	708
43°C	729
44°C	752
45°C	775
46°C	798
47°C	822
48°C	846
49°C	871
50°C	896
51°C	921
52°C	948
53°C	974
54°C	1,001
55°C	1,029
56°C	1,057
57°C	1,086
58°C	1,115
59°C	1,145
60°C	1,175
61°C	1,206
62°C	1,238
63°C	1,270
64°C	1,302
65°C	1,335
66°C	1,369

CoolProp 8.0.0 · PSIG/kPa = gauge · PSIA = PSIG + 14.6959 · kPa(abs) = kPa(gauge) + 101.325

Full saturation values at 1° increments. Toggle between °F / PSIG and °C / kPa. Use Print / Save as PDF for laminated shop reference, or download the CSV / JSON below for use in other tools. R-515B PT chart data: CoolProp 8.0.0 (published Helmholtz equations of state / mixture models — see the source citations above).

Lower toxicity, no flame propagation

Lower toxicity (Occupational Exposure Limit ≥ 400 ppm). No flame propagation in air at standard atmospheric pressure and 60°C. R-134a, R-22, R-410A, R-404A, R-744 (CO2) are A1.

Flammability: None (no flame propagation)
Toxicity: Lower (OEL ≥ 400 ppm)

Classification per ANSI/ASHRAE Standard 34-2022^{[5], safety group definitions and refrigerant safety classifications}. See full reference.

Saturation pressure-temperature curve

Pressure

Temperature

Highlight at°F

Quick lookup — R-515B

Temp:°F

49.4PSIG(341 kPa)

Range: −40 to 150°F Open full PT calculator →

Common service temperatures

32°F

17PSIG

Freezing

45°F

26PSIG

Heat-pump heat

70°F

49PSIG

Standard

75°F

55PSIG

Test ref

80°F

61PSIG

Warm

95°F

82PSIG

Summer peak

Saturation values from CoolProp 8.0.0 mixture model: R-1234ze(E)/R-227ea^[4].

Equation-of-state and mixture-model references

Equation of state, R-1234ze(E): Thol, M.; Lemmon, E. W. Equation of State for the Thermodynamic Properties of trans-1,3,3,3-Tetrafluoropropene [R-1234ze(E)]. Int. J. Thermophys. 37, 28 (2016). https://doi.org/10.1007/s10765-016-2040-6
Equation of state, R-227ea: Lemmon, E. W.; Span, R. Thermodynamic Properties of R-227ea, R-365mfc, R-115, and R-13I1. J. Chem. Eng. Data 60, 3745–3758 (2015). https://doi.org/10.1021/acs.jced.5b00684
Mixture model, R-1234ze(E)/R-227ea: Bell, I. H. Mixture Model for Refrigerant Pairs R-32/1234yf, R-32/1234ze(E), R-1234ze(E)/227ea, R-1234yf/152a, and R-125/1234yf. J. Phys. Chem. Ref. Data 52, 013101 (2023). https://doi.org/10.1063/5.0135368

At a glance

Chemistry

R-1234ze(E)/R-227ea (91.1/8.9)

Binary HFO/HFC azeotropic blend

Lubricant compatibility

POEPVEMO

Azeotrope (ASHRAE 500 series)^[6]. Safety class A1: no flame propagation^[5].

Blend composition

R-1234ze(E) 91.1%
R-227ea 8.9%

Trade names

Solstice® N15 — Solstice Advanced Materials^[9]

Common applications

New centrifugal chillers (EPA SNAP: acceptable)^[8]
Medium-temperature commercial refrigeration^[11]

Properties

Boiling point (1 atm)
bubble −2.1°F (−18.9°C), dew −2.1°F (−18.9°C)
Critical point
No single point — blend critical locus
Molar mass
117.50 g/mol
Temperature glide
under 0.1°F
ODP
0
GWP (100-yr)
287 US EPA value, 40 CFR 84.64(b) IPCC: AR4 not assessed · AR5 299 · AR6 322
New-equipment status (US)
Restricted in 17 new-equipment categories — US new-equipment rules (40 CFR 84.54).

What is R-515B?

R-515A and R-515B are both azeotropic R-1234ze(E)/R-227ea blends; R-515B has 8.9% R-227ea against R-515A's 12%^[6], which lowers the GWP from 387 to 287, about 26%^[10]^[7].

It is an azeotrope: the computed glide is under 0.1°F at a 40°F dew point^[4], so the table shows one column.

Where R-515B is used

New centrifugal chillers (EPA SNAP: acceptable)^[8]
Medium- and high-temperature commercial refrigeration^[11]
Heat pumps^[11]

Regulatory & phase-down status

R-515B's GWP of 287 is below the 700-GWP limit for comfort-cooling chillers (40 CFR 84.54(a)(10)(i), (c)(3)), so it remains permitted for new equipment in that category.^{[12], §84.54(a)(10)(i), (c)(3)} Its GWP is above the 150 limit in rows 11 and 13 of Annex III to Regulation (EU) No 517/2014, since replaced by (EU) 2024/573, applying from March 11, 2024^[13].

Operating cycle

Phase-down timeline

R-515B contains HFC-227ea, a regulated substance under the AIM Act^{[1], 42 U.S.C. 7675(c)(1)}. Its GWP under 40 CFR 84.64 is 287, at or above the limit in 17 of the categories 40 CFR 84.54 restricts (listed under “All 84.54 categories restricting R-515B”).

R-515B is not restricted in new chillers (its 84.64 GWP 287 is below that subsector's limit).^{[12], §84.54(a)(10)(i), (a)(10)(iii), (a)(10)(iv), (c)(3), (c)(5), (c)(6)}

HFC production & consumption allowances step down to 30% of baseline in 2029–2033, 20% of baseline in 2034–2035, and 15% of baseline in 2036 and later (42 U.S.C. 7675(e)(2)(C))^[1].

Full 40 CFR 84.54 new-equipment rules for R-515B →

US new-equipment rules (40 CFR 84.54)

R-515B contains HFC-227ea, a regulated substance under the AIM Act^{[1], 42 U.S.C. 7675(c)(1)}. Under 40 CFR 84.64(b) its GWP is 287: each component's GWP times its mass fraction; components without a GWP under 84.64 are left out (84.64(c)). That value is compared against each 40 CFR 84.54 subsector limit below.

Its GWP (287) is under every 40 CFR 84.54 limit for chillers, so those restrictions don't apply there.

Not restricted in new chillers.

All 84.54 categories restricting R-515B (17)^[12]

Refrigeration, air conditioning & heat pumps (10)
January 1, 2025	Household refrigerators and freezers	GWP ≥ 150	(a)(3)
January 1, 2025	Retail food refrigeration — stand-alone units	GWP ≥ 150	(a)(4)
January 1, 2025	Vending machines	GWP ≥ 150	(a)(5)
January 1, 2026	Industrial process refrigeration products (non-chiller), charge 200 lb or greater, refrigerant entering the evaporator warmer than −22°F (−30°C)	GWP ≥ 150	(a)(12)(i)
January 1, 2026	Ice makers — batch type up to 1,000 lb of ice per 24 h and continuous type up to 1,200 lb per 24 h	GWP ≥ 150	(a)(8)(i)
January 1, 2026	Industrial process refrigeration systems (non-chiller), charge 200 lb or greater, evaporator inlet warmer than −22°F (−30°C), not the high-temperature side of a cascade	GWP ≥ 150	(c)(10)(i)
January 1, 2027	Refrigerated food processing and dispensing products outside the scope of UL 621, charge 500 g or less	GWP ≥ 150	(a)(9)(i)
January 1, 2032	Retail food refrigeration — remote condensing units	GWP ≥ 150 (200 lb or greater, not the cascade high side)	(c)(11)(ii)
January 1, 2032	Supermarket systems	GWP ≥ 150 (200 lb or greater, not the cascade high side)	(c)(12)(ii)
January 1, 2032	Cold storage warehouse systems	GWP ≥ 150 (200 lb or greater, not the cascade high side)	(c)(9)(ii)
Motor vehicle air conditioning (3)
October 24, 2024	Motor vehicle air-conditioning in Model Year 2025 and later light-duty passenger cars and trucks (gross vehicle weight rating under 8,500 lb)	GWP ≥ 150	(a)(13)(i)
Model Year 2028	Motor vehicle air-conditioning in medium-duty passenger vehicles, heavy-duty pickup trucks and complete heavy-duty vans whose air-conditioning will not be modified by upfitters	GWP ≥ 150	(a)(13)(ii)
January 1, 2028	Motor vehicle air-conditioning in certain nonroad vehicles (agricultural tractors over 40 horsepower; self-propelled agricultural machinery; compact equipment; construction, forestry and mining equipment; and commercial utility vehicles)	GWP ≥ 150	(a)(13)(iii)
Foam blowing agents (2)
January 1, 2025	Foam products: rigid polyurethane appliance foam, commercial refrigeration foam, laminated boardstock, marine flotation foam, sandwich panels, slabstock; flexible polyurethane; integral skin polyurethane; polystyrene (extruded boardstock, billet, extruded sheet); phenolic insulation board and bunstock; polyisocyanurate laminated boardstock; polyolefin; rigid polyurethane spray foam	GWP ≥ 150	(a)(14)
January 1, 2026	Foam products in the (a)(14) formulations for use in space and military applications	GWP ≥ 150	(a)(15)
Aerosol propellants / solvents (2)
January 1, 2025	Aerosol products	GWP ≥ 150	(a)(16)(i)
January 1, 2028	Aerosol products (all, except defense sprays as defined in 84.3)	GWP ≥ 150	(a)(16)(ii)

Servicing. 40 CFR 84.54 restricts new manufacture/import, later sale/distribution, and installation. "Installation" is defined in 84.54(e); repairing or servicing existing R-515B equipment is not an installation unless it meets 84.54(e), so existing systems can keep being serviced. From January 1, 2029, servicing or repairing R-515B equipment in supermarket systems, refrigerated transport or automatic commercial ice makers must be done with reclaimed refrigerant^[3].

Source: 40 CFR 84.54, current through 91 FR 31329 (May 26, 2026). Installation defined at 40 CFR 84.54(e).

Global warming potential, in context

Medium-pressure centrifugal & screw chillers

Retrofit and replacement paths

R-515B replaces

R-134a A1 · GWP 1,430

R-515B vs R-134a: saturation pressure

Saturation pressure (PSIG, gauge) for R-515B vs R-134a. Each column shows the percent difference from R-515B. Sources: R-515B: CoolProp 8.0.0 dataset; R-134a: CoolProp 7.2.0 dataset.
Temp	R-515B	R-134a
0°F	0.8	6.5
40°F	22.2	35.0(+58%)
70°F	49.4	71.1(+44%)
100°F	89.9	124.2(+38%)

Frequently asked

›Why choose R-515B over R-515A?

Its GWP is lower — 287 against 387^[7]^[10] — and both are A1^[5].

›Can R-515B be used in equipment originally designed for R-134a?

Honeywell's data sheet lists retrofits as well as new systems for replacing R-134a^[11]; EPA's SNAP listing for centrifugal chillers covers new equipment only^[8]. The data sheet recommends POE oil^[11].

›What's the temperature glide of R-515B?

Under 0.1°F at a 40°F dew point, computed with CoolProp 8.0.0^[4]; Honeywell's data sheet describes it as zero-glide^[11].

›What is the GWP of R-515B?

287 in EPA's reference table^[7] — R-1234ze(E) (1) at 91.1% and R-227ea (3,220) at 8.9%, mass-weighted under 40 CFR 84.64(b)^[10]. R-227ea is 8.9% of the mass but about 99.7% of the GWP: 0.089 × 3,220 = 286.6 of 287.5^[10].

›Why does R-515B have R-227ea at all?

Pure R-1234ze(E) is A2L (lower flammability), while R-515B is A1^[5].

Download this dataset

Full PT chart for R-515B · CC BY 4.0 · attribute the source

CSV JSON

Sources & citations

[1]
42 U.S.C. 7675 — American Innovation and Manufacturing Act. US Code (via Cornell LII). current. https://www.law.cornell.edu/uscode/text/42/7675 (accessed October 2, 2026)
[2]
2017 Guideline for Assignment of Refrigerant Container Colors (AHRI Guideline N-2017). AHRI. 2017. https://www.ahrinet.org/system/files/2023-06/AHRI_Guideline_N_2017.pdf (accessed October 2, 2026)
[3]
40 CFR 84.112 — Reclamation. eCFR (Office of the Federal Register). up to date as of 9/25/2026. https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-84/subpart-C/section-84.112 (accessed October 2, 2026). 89 FR 82859, Oct. 11, 2024
[4]
CoolProp 8.0.0. CoolProp (I. H. Bell, J. Wronski, S. Quoilin, V. Lemort). https://coolprop.org/ (accessed October 2, 2026). Bell, I. H.; Wronski, J.; Quoilin, S.; Lemort, V. Pure and Pseudo-pure Fluid Thermophysical Property Evaluation and the Open-Source Thermophysical Property Library CoolProp. Ind. Eng. Chem. Res. 53, 2498–2508 (2014). https://doi.org/10.1021/ie4033999
[5]
ANSI/ASHRAE Standard 34-2022, Designation and Safety Classification of Refrigerants (free read-only version). ASHRAE. 2022. https://www.ashrae.org/technical-resources/standards-and-guidelines/read-only-versions-of-ashrae-standards (accessed October 2, 2026)
[6]
ASHRAE Refrigerant Designations. ASHRAE. web page, updated May 25, 2021. https://www.ashrae.org/technical-resources/standards-and-guidelines/ashrae-refrigerant-designations (accessed October 2, 2026)
[7]
Technology Transitions GWP Reference Table. US EPA. updated April 2, 2026. https://www.epa.gov/hfcs/technology-transitions-gwp-reference-table (accessed October 2, 2026)
[8]
Substitutes in Centrifugal Chillers. US EPA (SNAP). last updated March 19, 2026. https://www.epa.gov/snap/substitutes-centrifugal-chillers (accessed October 5, 2026)
[9]
Solstice® N15 (R-515B). Solstice Advanced Materials. product page. https://www.solstice.com/us/en/products/air-conditioning-refrigeration-and-heating/solstice-hfo-blends/solstice-n15-r-515b (accessed October 5, 2026)
[10]
40 CFR 84.64 — Global warming potentials. eCFR (Office of the Federal Register). current as of 9/28/2026. https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-84/subpart-B/section-84.64 (accessed October 2, 2026)
[11]
Technical Data Sheet Solstice® N15 (R-515B). Honeywell. DS-21-12-EN (04/21). https://prod-edam.honeywell.com/content/dam/honeywell-edam/pmt/oneam/en-us/refrigerants/documents/pmt-am-515b-tds.pdf?download=false (accessed October 5, 2026)
[12]
40 CFR 84.54 — Restrictions on the use of hydrofluorocarbons. eCFR (Office of the Federal Register). up to date as of 9/29/2026. https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-84/subpart-B/section-84.54 (accessed October 2, 2026)
[13]
Regulation (EU) No 517/2014 on fluorinated greenhouse gases. EUR-Lex. OJ L 150, 20.5.2014 (replaced by (EU) 2024/573 from March 11, 2024). https://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:32014R0517 (accessed October 2, 2026)