61:
310:
Where vehicles were privately imported or engines modified, they had to be inspected and certified by an authorised compliance engineer. Vehicles that failed testing, or compliance testing had not been undertaken, were deemed unroadworthy and penalties and/or bans applied (usually varying from state to state) if the vehicles were driven on public roads.
309:
The rule prohibited the commercial importation of vehicles manufactured outside of
Australia that did not comply with the rule, or the modification or supplying of alternate engines to vehicles manufactured or sold in Australia that would result in vehicles no longer complying with the requirements.
305:
to the engines of road-registered vehicles on sale within
Australia. In some cases, manufacturers were also required to modify the engines of these vehicles, mostly in the areas of cylinder heads, camshafts, carburettors and ignitions systems to meet the "cleaner" requirements. As a result,
272:
Prior to the release of a new model, manufacturers were required to submit a certain number of new vehicles for testing for each different engine available across a specific model's range. The number of vehicles required for testing depended upon expected production volumes.
38:) equipped with petrol fuelled spark ignition internal combustion engines except those also equipped to use use liquified petroleum gas (LPG) and those with and engine displacement of less than 850 millilitres (850cc), manufactured on or after 1 July 1976."
75:(ATAC), and covered all Australian states and territories. Vehicles required to comply with ADR27A were mostly passenger vehicles and light goods vehicles based upon passenger vehicles manufactured on or after 1 July 1976.
129:
An emission stabilisation period was established for between 0–6400 km, then a durability test to 8000 km was performed whereby a deterioration factor was calculated as follows:
49:
An amendment was made to the rule affecting vehicles manufactured on or after 1 January 1978 altering the deterioration factor for testing criteria to revised values - refer
160:
The rule was updated to allow greater deterioration factors for vehicles manufactured on or after 1 January 1978. Maximum permissible limits for each testing criteria were:
41:
The rule replaced the previous rule ADR27 (introduced 1 September 1973), and remained in effect until replaced by ADR37/00 (introduced 1 July 1988).
425:
367:
420:
260:
labels placed within a vehicle's engine bay specifying engine tuning specifications (e.g. idle speed, ignition timing, etc.)
263:
written instructions with each new vehicle sold specifying use of and maintenance requirements for emission control systems
72:
112:
The rule specified maximum permissible limits for fuel evaporative and exhaust emissions with specific criteria for:
373:. Third Edition. Department of Infrastructure, Transport, Cities and Regional Development (Australia). January 2020
392:
293:
Only those models which passed compliance testing were eligible for sale to be driven on
Australian public roads.
25:
specifying design and operating regulations to limit fuel evaporative and exhaust emissions for motor vehicles in
302:
97:
heavy duty (usually diesel-engined) vehicles tested for compliance complied with ADR36 (later replaced by ADR80)
22:
430:
276:
Testing was undertaken within strictly controlled conditions, with specific parameters defined for:
342:
87:
Vehicles exempt from the rule, as they fell under the regulations of a different rule included:
306:
ADR27A-compliant engines generally produced less power than previous non-compliant versions.
146:
Established emissions at 80000 km divided by established emissions at 6400 km
100:
diesel-engined vehicles not covered by ADR36 or ADR37 tested for compliance with ADR70
60:
414:
94:
light commercial vehicles tested for compliance with ADR37 (later replaced by ADR79)
154:
Established emissions at 80000 km minus established emissions at 6400 km
79:
defines those which were required to comply with or were exempt from the rule.
26:
103:
racing vehicles driven on tracks or circuits other than open public roads.
368:"Australian Design Rules, Category M - Passenger Vehicles"
32:
The rule covered "all motor vehicles specified below (see
343:"Australian Design Rule 27A for Vehicle Emission Control"
393:"Holden Torana LX Technical Specifications (1976)"
256:The rule stated other requirements including:
301:The rule required manufacturers to introduce
8:
116:Fuel evaporative emissions - hydrocarbons
337:
335:
333:
331:
329:
327:
325:
323:
162:
131:
59:
319:
348:. Commonwealth of Australia. July 1983
125:Exhaust emissions - oxides of nitrogen
73:Australian Transport Advisory Council
7:
138:Calculation of deterioration factor
122:Exhaust emissions - carbon monoxide
91:vehicles that complied with ADR27B
29:in order to reduce air pollution.
14:
119:Exhaust emissions - hydrocarbons
33:
1:
71:The rule was endorsed by the
50:
426:Road transport in Australia
286:volume of fuel in fuel tank
188:Fuel Evaporative Emissions
151:Fuel Evaporative Emissions
447:
421:Manufacturing in Australia
204:
174:
171:
168:
165:
67:: ADR27A vehicle coverage
303:emission control systems
395:. Unique Cars and Parts
68:
23:Australian Design Rule
175:Deterioration Factor
63:
280:ambient temperature
236:oxides of nitrogen
252:Other Requirements
205:Exhaust emissions
143:Exhaust Emissions
69:
249:
248:
158:
157:
438:
405:
404:
402:
400:
389:
383:
382:
380:
378:
372:
364:
358:
357:
355:
353:
347:
339:
283:fuel temperature
222:carbon monoxide
163:
132:
446:
445:
441:
440:
439:
437:
436:
435:
411:
410:
409:
408:
398:
396:
391:
390:
386:
376:
374:
370:
366:
365:
361:
351:
349:
345:
341:
340:
321:
316:
299:
270:
254:
110:
85:
58:
47:
12:
11:
5:
444:
442:
434:
433:
428:
423:
413:
412:
407:
406:
384:
359:
318:
317:
315:
312:
298:
295:
291:
290:
287:
284:
281:
269:
266:
265:
264:
261:
253:
250:
247:
246:
243:
240:
237:
233:
232:
229:
226:
223:
219:
218:
215:
212:
209:
206:
202:
201:
198:
195:
192:
189:
185:
184:
183:from 1 Jan 78
181:
177:
176:
173:
172:Maximum Value
170:
167:
156:
155:
152:
148:
147:
144:
140:
139:
136:
127:
126:
123:
120:
117:
109:
106:
105:
104:
101:
98:
95:
92:
84:
81:
57:
54:
46:
43:
13:
10:
9:
6:
4:
3:
2:
443:
432:
429:
427:
424:
422:
419:
418:
416:
394:
388:
385:
369:
363:
360:
344:
338:
336:
334:
332:
330:
328:
326:
324:
320:
313:
311:
307:
304:
296:
294:
288:
285:
282:
279:
278:
277:
274:
267:
262:
259:
258:
257:
251:
244:
241:
238:
235:
234:
230:
227:
225:24.2g per km
224:
221:
220:
216:
213:
210:
208:hydrocarbons
207:
203:
199:
196:
193:
191:hydrocarbons
190:
187:
186:
182:
179:
178:
164:
161:
153:
150:
149:
145:
142:
141:
137:
134:
133:
130:
124:
121:
118:
115:
114:
113:
107:
102:
99:
96:
93:
90:
89:
88:
82:
80:
78:
74:
66:
62:
55:
53:
52:
44:
42:
39:
37:
36:
30:
28:
24:
20:
16:
397:. Retrieved
387:
375:. Retrieved
362:
350:. Retrieved
308:
300:
292:
275:
271:
255:
239:1.9g per km
211:2.1g per km
194:2g per test
159:
128:
111:
86:
76:
70:
64:
48:
40:
34:
31:
18:
17:
15:
431:Vehicle law
180:to 1 Jan 78
415:Categories
314:References
83:Exemptions
56:Compliance
45:Amendments
399:5 October
377:5 October
352:5 October
169:Criteria
166:Category
135:Category
27:Australia
108:Criteria
51:Criteria
268:Testing
77:Table 1
65:Table 1
35:Table 1
21:was an
297:Impact
200:+0.2g
197:+0.2g
19:ADR27A
371:(PDF)
346:(PDF)
401:2020
379:2020
354:2020
289:etc.
245:1.1
242:1.0
231:1.1
228:1.0
217:1.1
214:1.0
417::
322:^
403:.
381:.
356:.
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